Statehood Legislators

Aaseth, John O.1850 1925   
Abbott, Alfred J.1844   - Territorial Legislature 1868 
Abbott, Burroughs1830   - Served in the Minnesota Legislature. 
Abbott, James W.1948     
Abbott, W. G.1860 1936   
Abdallah, Gene G.1936   13 - Resigned June 28, 2002. - Appointed to Senate, July 1, 2002, to fill vacancy of David Munson. - LRC Executive Board member 2007-2012 
Abdnor, James1923 2012 12 - President Pro tempore 1965-1966 - LRC Executive Board member 1965-1968 - Lieutenant Governor 1969-1971 - U.S. Representative 1973-1981 - U.S. Senator 1981-1986 
Abel, Edward Lincoln1860 1927 - Lieutenant Governor 1913-1915 
Abild, George1876   12 - Speaker of the House 1933-1934 
Ackerman, Henry1875     
Ackermann, William F. D.1884     
Adams, Francis D.1838 1899   
Adams, H. G. 'Jack'1918 2000   
Adelstein, Stanford M. 'Stan'1931   11 - Resigned December 30, 2013 
Aga, Lars J.1854 1930   
Agor, Hugh1892     
Ahlers, Dan1973   - LRC Executive Board member 2009-2010 
Ainslie, Stephen E.1869 1939   
Aker, Alan D.1963   - Majority Whip 1997-1998 
Akre, Arthur  1982   
Albaugh, R. D.1882 1958   
Albers, Kenneth D.1941   10 - LRC Executive Board member 2001-2002 
Aldrich, Irwin D.1864     
Aldrich, L. W.      
Allen, A. C.1864     
Allen, Carrol V. 'Red'1934   12 - LRC Executive Board member 1984 and 1989-1990 
Allen, Charles W.1851 1942  - Elected to the House in 1913, although Bennett was not recognized as a county. Had legislative privileges but could not vote, doorkeeper appointment on 9th legislative day. 
Allen, George Paschal1870     
Allen, Mike1873     
Allen, W. B.1892     
Allison, John C.1853 1919   
Allison, Robert1846     
Almquist, W. L.     - Elected to the House in 1923, did not qualify. 
Alseth, Charles A.1883 1936 10   
Alseth, John I.1857     
Alt, George1886 1993 - Lived to be 107 years old. 
Altenow, F. A.1861 1939   
Ammerman, Albert S.1849 1903   
Amsden, C. S.1856   30 - President Pro tempore 1915-1928 
Amundson, Amund P.1874 1958   
Amundson, Arnold E.1911 1993   
Amundson, Grant O.1915 2002   
Andera, Leonard E.1934 2012 - LRC Executive Board member 1989-1990 
Andersen, Dale V.1917 2004   
Anderson, Andrew A.1851     
Anderson, Andrew B.1848     
Anderson, Andrew S.1877 1924   
Anderson, Art B.1891   28 - LRC Executive Board member 1955-1966 - President Pro tempore 1957-1958 - LRC Executive Board Secretary 1961-1962 - LRC Executive Board Chairman 1965-1966 
Anderson, Burton W.1920 1988   
Anderson, C. E.1886 1973 10 - Served 5 sessions in the Iowa Legislature. 
Anderson, C. L.1923 1983   
Anderson, David1860 1950   
Anderson, David L.1956   - Appointed May 13, 2013, to fill vacancy of Patricia (Patty) Miller 
Anderson, Dean Wesley1927 2009 - LRC Executive Board member 1987-1988 - Resigned September 22, 1989; President Bush appointment; State Executive Director of the ASCS. 
Anderson, Debra R.1949   13 - Majority Whip 1985-1986 - Speaker of the House 1987-1988 - LRC Executive Board member 1987-1988 - Resigned March 6, 1989; President Bush appointment; White House Director of Intergovernmental Affairs. 
Anderson, Elmer William1868   14   
Anderson, Eunice1906 1989   
Anderson, G. W.1853     
Anderson, George F.1877     
Anderson, Harold1909 2002   
Anderson, Herbert1889 1961   
Anderson, Holger1909 1985 10 - LRC Executive Board member 1971-1974 
Anderson, James1845 1890 - Died in office September 11, 1890. 
Anderson, John Quinn1866 1937   
Anderson, John S.1850     
Anderson, L. M.1880     
Anderson, L. V.1900 1987   
Anderson, Loren Dean1934   - LRC Executive Board member 1985-1990 
Anderson, Mark W.1951     
Anderson, Martin G.1858     
Anderson, O. L. 'Larry'1930   10   
Anderson, Olaf1889     
Anderson, Oliver D.1858     
Anderson, Oscar L.1897 1991   
Anderson, Otto L.1849 1930   
Anderson, Paul A.1880 1964   
Anderson, Rexford Harrison1890     
Anderson, W. A.1882     
Andrews, A. M.      
Andrews, Charles H.1861     
Anundson, John1891 1980   
Apa, Gerald F. 'Jerry'1940   12   
Aplan, Frank F.1900 1966   
Apland, Albert N.1852 1931   
Apland, Henry1860     
Aplin, Edward H.1859     
Armstrong, C. H.1875 1951   
Armstrong, Roy S.1900 1987 12   
Arneson, Alef O.1856 1938   
Arneson, William R.1911   - LRC Executive Board member 1963-1964 
Arnold, Charles U.1864     
Arnold, Eldon E.1900     
Ash, James C.1871     
Ashford, E. P.1840 1931   
Ashley, Edward S.1851     
Atherton, L. G.1883     
Atkins, Joe1889     
Aulwes, Henry C.1847 1899   
Austad, Oscar Melvin1922 1996 - Assistant Minority Leader 1973-1974 
Austad, Randall J.1956     
Austin, Charles T.1850 1907   
Austin, Horace J.1837 1891  - Territorial Legislature 1865-1868 and 1874 - President of the Council 1868-1869 - Died in office February 27, 1891. 
Austin, William1838     
Ayers, Solomon A.1854     
Ayres, Albro Charles1907 1981   
Ayres, George Vincent1852 1939   
Babcock, Thornton N.1865 1944   
Bach, Christen Jacobson1858 1931 - Commissioner of School & Public Lands 1903-1907 
Backlund, Ed1893     
Bader, Ervin1920 2016   
Baggs, W. H.1889 1955   
Bailey, Theodore Mead1888 1949   
Bakeberg, August1889 1935   
Baker, John T.1845     
Baldwin, Edward H.1876 1961   
Baldwin, I. A.1876     
Baldwin, James M.1864     
Ballantyne, Madison1881 1953   
Ballou, Louverne Joseph1897     
Bangert, Christian J.1862     
Bangs, Alfred Walstein1830 1904   
Bangs, Frank D.1878 1935  - Died in office December 2, 1935. 
Banister, Gaston D.1828     
Barber, A. N.1858     
Barber, J. L.1882 1967   
Bard, John O.1829     
Barger, J. G.1886     
Barker, Linda K.1945     
Barkley, Edwin K.1922 1975   
Barkley, William1864 1949   
Barnard, Herbert S.1895     
Barnes, Guy F.1883 1973   
Barnes, J. I.1838     
Barnes, Richard1941     
Barnes, Sullivan1922     
Barnett, Joseph H.1931 1985 19 - Speaker Pro tempore 1971-1972 - Minority Leader 1973-1974 - Speaker of the House 1975-1976 - LRC Executive Board member 1975-1976 - Majority Leader 1979-1985 - Died in office May 1, 1985. 
Barnett, Ray E.1894 1971   
Barns, L. W.      
Barondeau, Andrew J.1930 1983   
Barrett, Marion1879 1952   
Barron, Curtis H.1869 1914   
Bartels, Arthur W.1878     
Bartels, Fred E.1902     
Bartels, Hugh M.1953   - LRC Executive Board Member, 2018 (elected to fill vacancy of Craig Tieszen on the board) 
Barthel, Doug1962   - Appointed September 6, 2017, to fill vacancy of Don Haggar 
Bartholow, W. E.1877 1958   
Bartine, John G.1870 1943   
Bartlett, H. B.1874     
Bartling, Julie1958   16 - LRC Executive Board member 2003-2004, 2007-2008 - Minority Whip 2005-2008 - Assistant Minority Leader 2013-2018 
Bartling, William1880 1951   
Bartnick, Merle D.1931 1990 - Died in office July 31, 1990. 
Barton, C. M.1881     
Bartow, Julius D.1851     
Bartron, G. Robert1920 2003 - President Pro tempore 1969-1970 - LRC Executive Board member 1969-1970 
Baskin, James H.1845 1904   
Bates, Charles P.1859     
Bates, Chauncey T.1869     
Bates, Isaac Leonard1835     
Bauer, Henry A.1897     
Bauer, John, Sr.1855     
Baughman, Bryan Joseph1919     
Beach, John W.1862     
Beal, Arch E.1955   - Majority Whip 2017-2018 - Assistant Majority Leader 2019-2020 
Bean, Authur B.1882     
Bean, John Stewart1839 1915   
Beardsley, O. E. 'Joe'1920 1994 - LRC Executive Board Secretary 1955-1956 
Beaty, Donald W.1903 1979   
Beck, Elmer A.1891 1971 10   
Beckers, Florence J.1916 1990   
Beddow, Jean T.1943     
Beebe, James P.1846     
Beebe, M. Plin1880 1941   
Begalka, Timothy P. 'Tim'1960     
Behnke, Julius E.1848 1932   
Belatti, Richard George1928     
Belk, John T.1860 1934   
Belk, Vernon Harold1894 1978   
Belknap, William S.      
Bell, Samuel A.1852 1940   
Bell, Winfield Scott1843 1929   
Bender, Darrell G.1938     
Bender, Gary Gideon1949 1987 - Died in office August 27, 1987. 
Benedict, Willis E.1858 1913   
Benjamin, H. P.      
Benke, Edward G.1846     
Bennett, Boyd B.1918 1996   
Bennett, Cassius C.1856     
Bennett, David Olney1843 1904   
Bennett, George P.1864 1932   
Benson, James F.1872     
Benson, Lars M.1853     
Benson, Lewis1872   10 - Speaker of the House 1919-1920 
Benson, Robert M.1943     
Bentley, William Spencer1872     
Berdahl, Christian O.1878   - Speaker of the House 1921-1922 
Berdahl, Erick J.1850 1937   
Berg, Andrew L.1871 1936   
Berg, Bernard E.1885   14   
Berg, O. K.1862     
Bergan, J. N.1877 1968   
Bergan, Thomas J.1917 2011   
Bergren, W. L.1871     
Berkman, Peter1854     
Bernard, Ben1856 1931   
Berndt, Theodore1858     
Berry, Ellis Yarnal 'E.Y.'1902 1999 - U.S. Representative 1951-1971 
Berry, George C.1870 1944   
Berry, J. M.  1956   
Berry, Tom M.1879 1951 - Governor 1933-1937 
Bertolero, John1894     
Bessler, William C.1884 1955   
Best, C. W.1865     
Bettelheim, Bernard F.1872 1949 12   
Betts, Andrew H.1846     
Betts, Mark C.1865 1940   
Bibby, Irwin J.1886 1964   
Bibby, John E.1920 2003 20 - LRC Executive Board member 1973-1978 - LRC Executive Board Chairman 1977-1978 
Bibelheimer, John1876     
Bickel, Thomas H.1859     
Bidleman, W. C.1882     
Bielski, Richard A.1880 1957   
Bielski, Richard M.1915 1991   
Bierce, J. W.1860     
Bierle, Don A.1926 2001   
Bierschbach, Douglas M.1954     
Bierwagen, M. E.1898 1986   
Bietz, Elmer A.1934   10 - LRC Executive Board member 1989-1992 - LRC Executive Board Vice Chairman 1991-1992 
Biever, Violet S.1911 2010   
Bigelow, A. H.1867     
Bigelow, Albert W.1864     
Biggar, James B.1888 1975   
Bilger, Frank Ward1883 1961   
Billion, David H.1943   - Elected in 1970, resigned January 2, 1971. - Assistant Minority Leader 1978 
Billion, Jack1939   - LRC Executive Board member 1993-1996 - Minority Whip 1995-1996 
Birch, John R.1859   10   
Bird, Francis William1874     
Bird, William1843 1917   
Bishop, W. K.1874   10 - Speaker Pro tempore 1937-1938 
Bixler, Burr F.1848   - Territorial Legislature 1889 
Blackstone, Leamon E.1857     
Blackwell, Charles H.1866     
Blain, T. P.1868 1918   
Blair, Enos E.1886 1969   
Blair, George W.1921     
Blair, Harry1890 1983   
Blake, Ambrose Barnum1877 1963 - Secretary of the Senate 1919-1924 and 1937-1940 
Blake, Howard E.1921   - LRC Executive Board member 1953-1954 
Blake, Olaf1887 1957 10   
Blake, Susy C.1950   - Minority Whip 20-11-2012 
Blake, William M.1835 1892 - Died in office March 4, 1892. 
Blakeley, A. L.1884     
Blanchard, Charles D.1842     
Blare, Rocky1955     
Blewitt, Ira F.1876     
Bliss, Ellen E.1905 1984 16 - LRC Executive Board member 1963-1966 - Elected in 1968, resigned January 23, 1969. 
Block, William1901     
Blomstrom, Lloyd E.1913 1997   
Blue, George D.1927 2004 - LRC Executive Board member 1963-1964 
Blue, Richard1855     
Blum, Erwin1888 1955   
Blum, G. C.1889 1943   
Bly, John H.1862 1929   
Bobb, Clyde S.1876     
Bobb, Earl V.1873     
Bode, Herman L.1886     
Boe, Carl E.1902 1975   
Boe, Jorgen J.1863 1941   
Boe, Nils A.1913 1992 - LRC Executive Board member 1951-1958 - LRC Executive Board Chairman 1953-1956 - Speaker Pro tempore 1953-1954 - Speaker of the House 1955-1958 - Lieutenant Governor 1963-1965 - Governor 1965-1969 
Boehmer, Henry J.1853 1924   
Boehrs, Clarence E. 'Swede'1907 1988   
Boekelheide, George1899     
Bogue, Alan, Jr.1867 1953   
Bogue, Andrew Stevenson1877 1959   
Bogue, Edward1866 1950   
Bogue, Eric H.1964   10 - LRC Executive Board member 1995-1996 - Majority Whip 2001 - Assistant Majority Leader 2002 - Majority Leader 2003-2006 
Bogue, Hilbert David1902 1996 - President Pro tempore 1961-1962 - LRC Executive Board member 1961-1962 
Bohning, Wallace W.1911 1981   
Boland, Abram C.1838 1912   
Boland, John A.1884 1958   
Bolduan, Archie A.1903     
Bolin, Jim1950   12 - Majority Whip 2015-2016 - LRC Executive Board member 2015-2020 - Assistant Majority Leader 2019-2020 
Boller, Fred A.1885 1969   
Bond, Ed D.1858 1908   
Bonde, John, Sr.1874 1952 - Died in office December 12, 1952. 
Bones, Walter I., Jr.1927 1995 16   
Bonney, George H.1858 1936   
Boomgarden, Jamie M.1968   - Majority Whip 2009-2010 
Boos, Barney A.1909 2005   
Booth, Emory A.1883 1965   
Bordeaux, Shawn1967     
Boreson, Charles1876   10   
Borglum, Scyller J.1977   - Appointed 8/8/2018 to fill vacancy of Sean McPherson. 
Bormann, Ernest G.1891 1986   
Bortnem, Adolph1886     
Bosland, A. T. H.1871 1957   
Bostrom, A. E.1881     
Bothun, Lasse1836 1918 - Territorial Legislature 1862-1865 and 1874-1875 
Bottum, George R.1862 1946   
Bottum, Joseph H.1853 1946   
Bottum, Roswell1901   - Speaker Pro tempore 1941-1942 
Bouck, Thomas L.1865     
Bowden, D. P.1869     
Bowell, Basil B.1850     
Bowen, M. K.      
Bowles, Frank E.1881     
Bowman, P. J.1859 1939   
Bowman, Samuel W.1830     
Box, William1844 1927 - Sergeant-at-Arms 1891 
Boy, Charles1842     
Boyce, Frank L.1854 1896 - Died in office December 19, 1896. 
Boylan, Bayard T.1858 1933   
Boyland, H. G.1832     
Brackett, J. W.1865     
Bradford, James Arnold1933   16 - Minority Whip 2011-2014 - Shannon County name change to Oglala Lakota County eff. May 1, 2015 
Bradley, William1853 1915   
Bradshaw, George M.1891 1970   
Bradshaw, Henry      
Brady, Dennis P.1870     
Brady, Frank J.1918 2002   
Brameier, William B.1857 1894   
Branson, O. L.1861     
Bras, Harry L.1862     
Bratrud, Christen C.1855 1939   
Brchan, Adolph1886 1960   
Bredvik, Tore1867     
Brekke, P. O.1891     
Brennan, Joe1881   14   
Brennan, William F.1859     
Brenneman, D. M.1858     
Brenneman, W. H.1890     
Brewer, Alexander1878 1939   
Brewster, D. H.1873 1959   
Brink, A. J.1857     
Brockway, Charles L.1850     
Broderick, B. Michael, Jr.1939   12 - Appointed May 19, 1993, to fill vacancy of Michael O'Connor. - LRC Executive Board member 2005-2006 
Broer, Paul A.1893 1973   
Bromley, Nelson P.1855 1949   
Bronson, Stiles H.1842     
Brooberg, Frank G.1858     
Brooks, Cleveland F.1887 1986   
Brooks, John H.1852     
Brooks, Ray R.1907     
Brooks, Roger1943     
Brooks, Weldon F.1861     
Brosius, George K.1880     
Brosz, Donald 'Don'1931   - Appointed January 1, 1998, to fill vacancy of Jim Thompson. - LRC Executive Board member 1999-2002 
Brouillette, John Baphisie1843 1916   
Brown, A. N.1871     
Brown, Arnold M.1931   12 - Appointed January 22, 1997, to fill vacancy of Richard B. Negstad. - LRC Executive Board member 1997-2004 - LRC Executive Board Vice Chair 1999-2000 - LRC Executive Board Chair 2001-2002 - President Pro Tempore 2001-2004 
Brown, Corey William1974   - Assistant Majority Leader 2011-2012 - President Pro Tempore 2013-2015 - LRC Executive Board member 2013-2016 - LRC Executive Board Vice Chair 2015 - Majority Leader 2015-2016 (elected May 9, 2015 to replace Tim Rave) 
Brown, Fred O.1878 1954   
Brown, G. C.1867     
Brown, Gary1942   - Appointed December 16, 1997, to fill vacancy of Michael DeMersseman. 
Brown, George Washington1840 1905 - Died in office December 31, 1905. 
Brown, Henry1875 1964   
Brown, J. H.      
Brown, J. L.1861     
Brown, J. W.1866     
Brown, Jarvis W.1925 2003   
Brown, John L.1952   10   
Brown, Nathaniel1850     
Brown, Paul E.1913 1995 16 - Speaker Pro tempore 1961-1962 - LRC Executive Board member 1961-1964 - Speaker of the House 1963-1964 - LRC Executive Board Chairman 1963-1964 
Brown, Richard E. 'Dick'1944     
Brown, William M.      
Brown, William Nelson1848     
Brown, Wilson1854 1940   
Browne, John L.1845   12 - Speaker of the House 1903-1906 
Brownell, Harry Franklin1882 1940   
Browning, John N.1899 1981   
Bruce, David George1854 1941   
Bruce, Lars A.1877     
Brudvig, A. N.1874     
Bruell, William F.1878 1943   
Bruett, Charles1888   20   
Brumbaugh, George W.1852 1930   
Brundage, John N.1872     
Brunner, Thomas J.1958   14 - Majority Whip 2007-2008 
Brusseau, Edward E.1867     
Bryant, W. C.1853     
Brynjulson, Sander1870 1951   
Buchanan, Robert1836 1895   
Buche, Gus F.1881 1975   
Buchholz, W. D.1878     
Buck, Joseph Peter1864 1948   
Buckingham, Harold D.1910 1995   
Buckingham, Michael T.1958     
Budweiser, George H.1880 1957  - Elected to the House in 1913, served 10 legislative days, election contested. 
Buechler, Christian1843     
Buehler, John1902 1993 22 - LRC Executive Board member 1951-1952 and 1955-1958 
Buell, Charles J.1865 1938   
Buffington, George A.1879     
Buhl O'Donnell, Angela Marie1985   - Minority Whip 2013-2014 
Buikema, Rennie R.1870   10   
Bullock, James L.1861     
Bulow, William John1869 1960 - Governor 1927-1931 - U.S. Senator 1931-1943 
Burch, I. L.1856     
Burg, George O., Sr.1898 1975 16   
Burg, James A.1941   12 - LRC Executive Board member 1977-1982 - Assistant Minority Leader 1979-1984 and 1985-1986 - Public Utilities Commissioner 1987-2004 
Burg, Quinten L.1948   10 - Assistant Minority Leader 2001-2004 - LRC Executive Board member 2001-2002 and 2007-2010 
Burgess, Carl T.1911 1994 16 - Appointed to the House in 1957. - Speaker of the House 1961-1962 - LRC Executive Board member 1961-1964 
Burgess, William A.1863     
Burke, Alfred J.1897 1988 - LRC Executive Board member 1969-1972 
Burke, Charles Henry1861 1944 - U.S. Representative 1899-1907 and 1909-1915 
Burke, John L.1856 1940   
Burkhart, Charles A.1860 1922 - Secretary of State 1919-1922, died in that office. 
Burkholer, Daniel F.1865     
Burleigh, Walter Atwood1820 1896 - Territorial Delegate 1865-1869 - President of Council (Territorial) 1877 - Montana Territorial Legislature 1886 
Burlingame, Lyman Rufus      
Burnham, William A.1847     
Burns, Michael1858     
Burns, Robert H.1928 1994 - LRC Executive Board member 1961-1964 
Burns, Robert J.1946     
Burns, Roy D.1896 1980   
Burnstad, A. C.1853 1951   
Burritt, John M.1905     
Burt, George K.1875 1944   
Burtt, Albert W.1833 1917 - Attorney General 1902-1903. 
Bush, C. C.1871     
Bush, W. E.1881 1954   
Bussey, Benjamin1849 1925   
Bussey, Elmer1889     
Bussey, Franklin1862 1934   
Bussey, Walter R.1895     
Buttz, William L.1879     
Byrne, Frank M.1858 1928 - President Pro tempore 1909-1910 - Lieutenant Governor 1911-1913 - Governor 1913-1917 
Byrne, Peter1846 1931   
Byron, J. P.1875     
Byrum, Charles E.1868 1975 - Lived to be 106 years old. 
Cable, Harley H.1876 1967   
Cahalan, Arthur B.1883 1974   
Cahill, Pierce1869     
Cain, John1856   - Territorial Legislature 1887 
Callan, Stanley V.1881 1953   
Cammack, Gary L.1953   - President Pro Tempore 2015-2016 (elected May 9, 2015 to replace Corey Brown) - LRC Executive Board member 2015-2016 - LRC Executive Board Chair 2016 
Campbell, Blaine (Chip)1940     
Campbell, Charles A.      
Campbell, Dwight1888   - Supreme Court Justice 1925-1937 
Campbell, E. J. 'Jim'1903 1969   
Campbell, Frank E.1842     
Campbell, John1839 1909   
Campbell, Roger A.1895     
Carleen, Ernest A.1892     
Carley, William A.1861     
Carlin, Douglas F.1855     
Carlisle, Martin G.1862 1958   
Carlson, Charles J.1872     
Carlson, Donald C.1929 2005 - LRC Executive Board member 1981-1982 
Carlson, Hardy1887   10   
Carlson, Henry, Jr.1925     
Carlson, Jacob H.1914 1993  - Assistant Sergeant-at-Arms 1978-1980 and 1983-1986 - Appointed in September 1980, to fill vacancy of Ronald K. Miller. - Sergeant-at-Arms 1987-1990 
Carlson, Nels C.1852     
Carpenter, Clarence D.1875 1965   
Carpenter, Maurice M.      
Carpenter, William1856 1922   
Carrier, J. I.      
Carroll, C. M.1881 1957   
Carroll, John H.1849 1948   
Carson, Lance1945   10 - LRC Executive Board member 2011-2014 - LRC Executive Board Vice Chair 2013-2014 
Carter, Will1893 1967   
Case, George W.1861 1943   
Caselli, Robert E.1927   - LRC Executive Board member 1993-1994 
Casner, Dwight1875 1943   
Cassill, Charles H.1868   - State Treasurer 1907-1909 
Cattron, Wesley F.      
Cawood, Thomas1838 1911   
Cerny, William F., Jr.1931   22 - LRC Executive Board member 1983-1986 - Minority Whip 1988-1990 
Chaffee, Kirk1963     
Chamberlain, Will1864     
Chamberlin, C. Bruce1919     
Chamberlin, Charles A.1855 1933   
Chamberlin, Robert1920   - LRC Executive Board member 1957-1960 
Chance, Simon W.1909 1996 12   
Chaney, Morris J.1858   - Speaker of the House 1907-1910 
Chase, C. L.1900 1965 - LRC Executive Board member 1957-1960 
Chase, Isaac H.1897 1975   
Chase, Roger D.1966     
Chaussee, Wilfred L.1899     
Cheney, F. Julian1919 1983 10 - Commissioner of School & Public Lands 1983, died in that office January 16, 1983. 
Cherington, Aden Emory1836 1912   
Cheskey, O. Wayne1915     
Chicoine, Roland A.1922 2016 20   
Chiesman, William J.1854 1909   
Chilcott, Ellery Channing1859 1933   
Christensen, Daryl J.1957     
Christensen, Eugene D.1944   - LRC Executive Board member 1983-1984 
Christensen, Grover1884     
Christensen, Harvey M.1918 1997   
Christensen, Nels P.1891 1967 12   
Christenson, Bernard W.1938   - Majority Whip 1987 - Resigned November 11, 1987. 
Christian, Christ1895     
Christians, Harry1907 1991   
Christianson, H. J.1882 1978   
Christianson, Marcus A.1865 1924   
Christianson, T. Loren1926   18   
Christopherson, Anton F.1854     
Christopherson, Arbie F.1892   - Speaker Pro tempore 1951-1952 
Christopherson, Charles A.1871 1951 - Speaker of the House 1915-1916 - U.S. Representative 1919-1933 
Christopherson, Harry A.1897 1966   
Chuning, R. L.1863     
Cindel, August P.      
Clapp, Edwin E.1867     
Clark, Damon1899     
Clark, Damon H.1873 1947 24   
Clark, David H.1856 1891  - Died in office March 7, 1891. 
Clark, Eldon W.1870     
Clark, H. D.1862     
Clark, Harland C.1917 1982   
Clark, J. A.1848 1914   
Clark, Judy F.1943     
Clark, Michael1966     
Clark, Ray1919     
Clark, Victor1920     
Clark, William1844 1914   
Clarke, Neil1937   - Assistant Majority Leader 1977-1978 
Clarkson, J. B.1875 1963   
Clay, C. H.1860     
Clay, Charles E. 'Eddie'1922 2012   
Clayton, William F.1923 2017 - Resigned in July 1969. 
Clements, Donald Bruce1918 1994   
Cleveland, Ezra W.      
Cleven, Hans N.1851     
Close, Joseph H.1858 1917   
Cochran, O. W.1861 1945   
Cock, Frank R.1867 1937   
Cole, Cyrus1840 1921   
Cole, Douglas M.1954     
Cole, Elmer L.1864     
Coleman, Arthur L.1896 1972 10 - LRC Executive Board member 1954 
Colgan, Arthur J.1856 1927   
Coller, Granville J.1854     
Collier, Caitlin F.1956     
Collingwood, Robert T.1898     
Collins, Frederick W.1826 1893 - Served in Michigan Legislature. 
Collins, I. W. A.1871     
Colton, W. O.1859     
Colvin, John1843   - Speaker of the House 1897-1898 
Comstock, John F.1861     
Conahan, Walter C.1927 2015   
Cone, James W.1850 1913 - Chief Clerk of the House 1889-1894 and 1907-1910 - Died in office October 10, 1913. 
Conlan, Martin E.1849 1923   
Conner, George T.1885     
Conover, John S.1880 1940   
Conrad, C. E.1843     
Converse, Vincent I.1852     
Conzet, Kristin A.1970   10 - Appointed December 1, 2009, to fill vacancy of Brian Dreyer - LRC Executive Board member 2011-2012 - Majority Whip 2013-2014 
Cook, Perry T.1899 1959   
Cook, Volkit S.1850     
Cook, Willis C.1874     
Cooke, Lawton Willard1851 1920   
Cooley, J. A.1844     
Cooley, James P.1845 1915 - Territorial Legislature 1872 
Cooley, W. R.1887     
Cooper, Henry T.1850 1916 - President Pro tempore 1905-1906 
Cooper, Miles M.1845 1935   
Cooper, Robert L.  1916   
Cordill, Oliver P.1859     
Corey, Lorenzo Emos1880 1933   
Corker, Louis R.1892     
Cornwell, Albert H.1856     
Cory, Frank J.1859     
Costain, Herbert R.1880 1955   
Cottle, Frank1853 1927   
Cotton, Sheldon E.1941   - Resigned July 11, 1984. - Commissioner of School & Public Lands 1985-1986 
Countryman, B. W.1867 1916   
Court, Henry1848     
Courtney, R. J.1855 1930   
Covey, Ernest A.1908 1989   
Covey, Hyatt E.1875 1968 - Lieutenant Governor 1927-1929 
Covey, M. R.1833     
Cox, Walter H.1860     
Coyne, Robert E.1883     
Cradduck, Rebekah A.1953   - Appointed December 4, 2001, to fill vacancy of Dick Hainje. - LRC Executive Board member 2003-2004 
Craig, Scott W.1964     
Craig, William D.1849     
Crandall, Clinton J., Jr.1893     
Cranston, R. F.1878     
Cranston, Royal1843 1925   
Crawford, Coe Isaac1858 1944 - Territorial Legislature 1889 - Attorney General 1893-1897 - Governor 1907-1909 - U.S. Senator 1909-1915 
Crawford, Guy W.1864     
Crawford, Irving R.1892     
Crawford, J. C.      
Crill, Louis Napoleon1867 1929 - President Pro tempore 1897-1898 
Crisman, John Henry1867 1944   
Crisp, Kevin R.1951     
Croes, Charles W.1886     
Cronin, Justin R.1980   12 - LRC Executive Board member 2009-2010 - Assistant Majority Leader 2011-2014 
Crook, Albert E.1896 1983   
Crooks, William A.1849 1922   
Crosmer, Jacob1837     
Crothers, Percy R.1861     
Crouch, David N.1852   - Missouri Legislature 1891-1892 
Crouch, George O.1901     
Cruse, Peggy1934   - Secretary of the Senate 1993-1994 
Culver, Burton1870     
Cummings, E. B.1840     
Cundill, Frank1887 1965   
Curd, Richard (Blake)1967   10 - Appointed June 5, 2013, to fill vacancy of Mark Johnston - Marjority Leader 2017-2018 - LRC Executive Board member 2017-2018 
Curran, Michael1939     
Curtis, Allen L.1874     
Curtis, Everett1855 1947   
Curtiss, Ira O.1860     
Cutler, Joni M.1956   10 - LRC Executive Board member 2011-2012 - LRC Executive Board Vice Chair 2011-2012 
Cutler, Steve K.1948   16 - Majority Whip 1987-1988 - Speaker Pro tempore 1991-1992 - Speaker of the House 1993-1994 - LRC Executive Board member 1993-1994 - Assistant Majority Leader 1995-1998 - Majority Leader 1999-2000 
Cwach, Ryan1986     
Dahl, Albert1868     
Dahl, Anton H.1862 1948   
Dahl, Endre C.1861     
Dahl, Oscar P.1904 1998   
Dahle, Melvin A.1889 1931   
Dahlen, Andrew N.      
Dahme, August1900   10   
Dailey, L. E.1885 1959   
Dailey, Robert E.1881 1963   
Dailey, Robert, Jr.1918 1989   
Daley, Patrick1847     
Dalthorp, A. B.1871     
Dalton, John J.1879     
Daly, George B.1852     
Dam, Chris1890     
Damsgaard, Albert E.1888 1968   
Dana, Raymond E.1914 2008 - Speaker Pro tempore 1959-1960 - LRC Executive Board Secretary 1959-1960 
Danekas, Willis E.1925 2004 12   
Danforth, George Johnathan1875 1952   
Danforth, Wallace M.1852 1927   
Daniels, Edward1859     
Danielson, B. R.1889     
Dannenbring, Otto1890 1977   
Darbyshire, C. W.1897 1961   
Daugaard, Dennis M.1953   - LRC Executive Board member 1999-2002 - Lieutenant Governor 2003-2010 - Governor 2011-2014 
Daulton, James W.1889     
Davidson, Dedrick J. N.1880 1953   
Davies, John1860 1952   
Davis, Dale A.1918     
Davis, Deane G.1895     
Davis, James P.1832     
Davis, John1834     
Davis, Justin J.1978     
Davis, Kathryn 'Kay'1936   - LRC Executive Board member 1997-1998 
Davis, Norman E.1866     
Davis, Philip D.1842 1920   
Davis, S. H.1869   - Elected in 1933, served 8 legislative days, election contested. 
Davison, Albert L.1859     
Davison, Sid I.1912   - LRC Executive Board member 1953-1954 
Dawson, J. W.1892 1958   
Day, W. A.1855 1915  - Died in office in 1915. 
de Hueck, Patricia1952   - LRC Executive Board member 1997-1998 
De Vries, Mark T.1972     
Deadrick, Thomas J.1952   - Speaker Pro Tempore 2005-2006 - Speaker of the House 2007-2008 - LRC Executive Board member 2007-2008 
Deahn, John W.1898 1967   
Dean, Edgar1851 1928   
Dean, Hoadley1918 1989   
Dean, James O.1846 1923   
Deane, Charles W.1852     
DeBoer, William1880 1964 14   
Decker, William A.1947     
DeCoster, Fred A.1855     
Deelstra, Robert (Bob) James1980     
Delaney, Thomas J.1886     
DeMalignon, Henry R.1860     
DeMersseman, Michael1939   - Majority Whip 1997 - Resigned December 15, 1997. 
Demmers, Joe E.1906 1992   
Dempster, Thomas A.1949   - LRC Executive Board member 2003-2004 - Majority Whip 2005-2006 - Assistant Majority Leader 2007-2010 
DeNeui, C. T. 'Corney'1910 1962   
Denhart, H. Cecil1886 1967   
Dennert, Drew1995   - Youngest legislator elected in South Dakota at age 21. 
Dennert, H. Paul1937   20 - LRC Executive Board member 2001-2006 - Assistant Minority Leader 2009-2010 
Dennis, Leander C.      
Denton, Samuel1844     
Derby, Michael P.1957   - LRC Executive Board member 1999-2002 - LRC Executive Board Vice Chair 2001-2002 
Deutsch, Fred1957     
Devereaux, Harry J.1889 1977   
Devine, James B.  1917   
Dewey, Van R.1868     
DeWoody, Milton T.1857   - Territorial Legislature 1885 
Dexter, F. N.      
Dickinson, Lloyd G.1918     
Dickover, Joseph B.1853     
Diedrich, Larry W.1957   - LRC Executive Board member 1997-2000 - Majority Whip 2001-2002 - Resigned January 26, 2004, candidate for U.S. House. 
Diedrich, Michael Gordon1954   - Minority Whip 1993-1994 - Appointed January 4, 2018, to fill vacancy of Craig Tieszen - Majority Whip 2019-2020 
Diedtrich, Elmer1927 2013   
Dilger, Felix Karl1830     
Dillavou, D. O.1936 1968  - Elected to the House in 1968, posthumously. 
Dillon, Charles Hall1853 1929 - U.S. Representative 1913-1919 - First 1st District Congressman - Supreme Court Justice 1923-1926 
Dillon, J. Rees1877     
Dimock, Warren1859 1930   
Dingsor, Ole H.1863     
DiSanto, Lynne1977     
Disbrow, A. S.1856     
Disrud, S. D.      
Distad, Erick E.1845     
Dixon, Robert1835     
Doering, Gotthilf1862 1934   
Doering, John1868     
Doheny, D. D.1908     
Dokken, Gust M.1888 1963   
Dollard, Robert1842 1912 - Territorial Legislature 1889 - First State Attorney General 1889-1893 
Donahue, Joseph1859     
Donahue, Roger O.1848 1928   
Doner, Harold H.1903     
Donnelly, Charles E., Jr.1927 2003 - President Pro tempore 1973-1974 - LRC Executive Board member 1973-1974 
Donohoe, Cary A.1860 1952   
Doran, A. P.1859     
Dornbusch, E. A.1893     
Dortland, Frank1856 1929   
Doughty, Asa B.1845     
Doughty, C. T.1865     
Douglas, John C.1838 1899   
Douglas, W. G.1879 1963 - State Treasurer 1939-1942 
Douglass, James      
Dowdell, Robert E.1857   12   
Downer, John M.1848 1938   
Downing, F. W.1849 1900   
Downs, Edward H.1907     
Drake, Charles F.1845     
Drake, Gary M.1944 2017   
Drake, Milo1877     
Drake, Robert A. 'Bob'1957     
Drake, William A.1846     
Drew, Frank1858     
Dreyer, Brian Edward1976   - Resigned November 2, 2009 
Driesbach, Charles H.1856 1940   
Driscoll, Robert E.1888     
Driscoll, William E.1874     
Droz, Charles C.1924   13 - LRC Executive Board member 1961-1962 and 1965-1966 - Speaker Pro tempore 1963-1964 - Speaker of the House 1965-1966 - Resigned in November of 1969. 
Dryden, Robert (Dan) Danny1944 2016 - Died in office August 30, 2016. 
Duba, Linda1956     
Dudley, George W.1871     
Dudley, William B.1869 1949   
Duenwald, Jay L.1937 2013 12 - Majority Whip 1999-2002 - Majority Whip 2005-2006 
Dukes, John1832     
Duncan, George1848     
Duncan, John K.1866 1958   
Dunham, Fred N.1880 1964   
Dunham, W. F.    - Territorial Legislature 1877 
Duniphan, Jeanie P. 'J.P.'1946   12 - LRC Executive Board member 1999-2000 - Majority Whip 2001-2002 
Dunmire, Joe R.1902 1977 20 - LRC Executive Board member 1963-1964 
Dunn, George E.1927     
Dunn, James B. 'Jim'1927 2016 30 - LRC Executive Board member 1977-1982 and 1985-1990 - LRC Executive Board Vice Chairman 1979-1980 - LRC Executive Board Chairman 1981-1982 - Assistant Majority Leader 1989-1992 and 1995-1998 - Assistant Minority Leader 1993-1994 - Senior Assistant Majority Leader 1999-2000 
Dunn, Rebecca J.1945   - LRC Executive Board member 1993-1996 - Assistant Minority Leader 1997-1998 
Dupper, Ervin E.1923     
Duvall, Mary Kay1962     
Duxbury, Robert N."Bob"1934 2016 22 - Minority Leader 1987-1994 - LRC Executive Board member 1997-2002 
Dvorak, Joe1899 1984   
Dwight, Theodore W.1865     
Dwyer, Daniel C., Sr.1815 1900   
Dybvig, Clarence1919 2000 - Appointed January 23, 1969, to fill vacancy of Ellen E. Bliss. 
Dye, Ellsworth E.1863 1931   
Dyer, Ward Bertram1880 1936   
Dykstra, Joel D.1958   - Assistant Majority Leader 2005-2008 
Earley, William F.1943   - Appointed January 4, 1999, to fill vacancy of Judy Rost. - LRC Executive Board member 2005-2006 
Early, William I.1873 1964   
Eastman, Charles S.1864 1939   
Eastman, Edgar C.1869 1934   
Ebbert, Edwin L.1863 1929   
Ebberts, Samuel1840 1931   
Eberhard, Emanuel1860 1941   
Ebersviller, John1850 1915   
Ebert, W. F.1878     
Eccarius, Scott G.1961   - Majority Whip 1998 - Speaker Pro tempore 1999-2000 - Speaker of the House 2001-2002 - LRC Executive Board member 2001-2002 
Ecklund, Scott Wayne1955     
Ede, Ernest D.1876 1917   
Edelen, Mary B.1944   18 - LRC Executive Board member 1975-1976 and 1979-1980 
Edgerton, Edward G.1853     
Edwards, Evan      
Edwards, Guy1950     
Edwards, Peter1851 1929   
Edwards, William1850 1920   
Ege, William E.1862     
Egge, John A.1855 1945   
Eggebroten, Elmer1878     
Eggen, Carston1887 1923   
Eggers, Claus F.1879 1949   
Eggers, Jacob W.1874 1944   
Eggert, W. J.1898   - Speaker of the House 1935-1936 
Ehrenberg, W. F.1899 1939  - Died in office May 29, 1939. 
Eichman, Robert L.1921 2000 - LRC Executive Board member 1979-1984 - LRC Executive Board Vice Chairman 1981-1982 - LRC Executive Board Chairman 1983-1984 
Eide, M. D.1879     
Eidsness, Pat1946     
Eidy, Jean E.1923 1994   
Eilers, Herman D.1874 1937   
Elce, Thomas C.1843     
Eliason, Joseph1867     
Elkins, Ed T.1891 1966 16 - President Pro tempore 1951-1952 - LRC Executive Board Chairman 1951-1952 - State Treasurer 1955-1959 
Ellefson, Eric J.1889     
Ellefson, John1886 1975   
Ellefson, Lewis W.1880     
Ellerman, John N.1878     
Elling, George M.1889 1979   
Ellingson, Bertrum E.1921 2012 12 - LRC Executive Board member 1971-1974 - LRC Executive Board Vice Chairman 1973-1974 - Assistant Majority Leader 1973-1974 - Assistant Minority Leader 1975-1976 - Minority Leader 1977-1978 
Elliott, Albert F.1856 1907   
Elliott, Burton B. 'Burt'1947   - Minority Whip 2005-2008 
Elliott, Edley J.1852 1937   
Elliott, Elaine M.1945 2016   
Elliott, H. C.1888     
Ellis, Kenneth W.1917 1989   
Ellis, Seth R.1884 1976   
Ellwein, Andrew1877     
Elsom, Joseph1840 1926   
Elting, William D.1829     
Elwood, Clell D.1924   - Appointed November 1963, resigned in March 1967. 
Elwood, Ira E.1893 1979   
Elwood, Wesley1922 2001   
Emery, James W.1934   12 - Elected to the House in 1984 - Appointed December 18, 1985, to fill vacancy of John D. 'Jack' Manke. - LRC Executive Board member 1993-1996 - LRC Executive Board Vice Chair 1995-1996 
Emery, Theodore E.1861     
Endres, James1931 2018 - Assistant Minority Leader 1977-1978 
Engbrecht, H. Junior1929 2007   
Engel, John A.1909 1983   
Engel, Rudolph1890 1971   
Engelbrecht, Arthur E.1901     
Engels, Richard A.1969   - LRC Executive Board member 2007-2008 
Englesby, Charles H.1869 1940   
English, E. J.1858     
Engstrom, Ole Peter John1868 1948 - Commissioner of School & Public Lands 1925-1933 
Eno, Al P.1869 1942   
Eppard, J. W.      
Erbe, Charles1878 1956   
Erickson, Carl J.1872     
Erickson, Christine Marie1978   - Resigned May 20, 2014 
Erickson, Emil1862     
Erickson, Irwin R.1894 1973   
Erickson, Iver O.1877     
Ericson, E. W.1858     
Ericson, Edward Charles1856   - Territorial Legislature 1887-1889 
Ericsson, LeRoy F.1909     
Erion, J. M.1860     
Erlandson, Earl1894 1948 - Died in office June 17, 1948. 
Ernst, George C.1876   12   
Erskine, Carroll D.1882 1958   
Erwin, David A.1861 1927   
Erwin, W. I.1860     
Erz, Leo1907     
Eske, O. G.1910     
Evander, Fred1869 1957   
Evans, David R.1862 1939   
Evelo, Francis J.1895     
Evenson, John1855 1936   
Everist, Barbara1949   10 - Majority Whip 1997-1998 - LRC Executive Board member 1997-1998 - Assistant Majority Leader 1999-2000 - Majority Leader 2001-2002 - 1st Woman to be elected Majority Leader 
Everitt, T. S.  1919   
Everson, Edward Henry1883 1966   
Ewald, John G.1871     
Ewert, Adolph W.1865   - State Treasurer 1913-1917 
Ewing, Bob1954   - Majority Whip 2017-2020 - LRC Executive Board member 2019-2020 
Eygabroad, Charles H.1863     
Faehn, Bob1958   - Majority Whip 2007-2008 - Majority Leader 2009-2010 
Fairbank, John B.1843 1908   
Falmer, Christian Henry1859 1926   
Fanebust, Arthur1883 1952 14 - LRC Executive Board member 1951-1952 - Died in office August 26, 1952. 
Fannemel, Peder M.1871 1927   
Fanslow, F. E.1895     
Fargen, Mitchell T.1983   - Assistant Minority Leader 2011-2012 
Farmer, W. H.1889     
Farren, Henry B.1848 1905   
Faulk, Philip K.1840     
Fedderson, James1884   12   
Feeney, Mike1873 1937 - Died in office on February 19, 1937. 
Feickert, Dennis A.1948     
Feinstein, Marc S.1953   - Minority Whip 2009-2010 - LRC Executive Board member 2011-2012 
Fellows, Lynn1894 1971 - Won contested seat in 1933, after 8th legislative day. 
Fenelon, John J.1861 1929   
Fenzl, Frank J.1873 1937   
Fergen, Casper B. M.1857 1941   
Ferguson, Archie1855 1918   
Ferguson, Duncan      
Ferguson, Frank A.1898   12 - President Pro tempore 1955-1956 - LRC Executive Board member 1955-1956 
Ferguson, Fred L.1874     
Fett, O. J.1885 1948   
Fetzner, Frank T.1885 1971 10   
Few, George H.1855     
Fiegen, Kristie K.1962   - Appointed to Public Utilities Commission--August 9, 2011 
Fiegen, Scott1966   - Appointed May 6, 2015, to fill vacancy of Tim Rave. 
Fillaus, A. J.1882 1963   
Fillbach, George W.1903 1986 12 - LRC Executive Board member 1963-1964 
Finch, Frank A.1866     
Finck, Caleb1993     
Finley, Herbert B.1912     
Finnerud, Hans Martin1859 1939   
Finnie, John1846     
Fischer, Carl Theodore1901 1983   
Fischer, J. H.1869     
Fischer-Clemens, Deb1955   - Minority Whip 1997-2000 - LRC Executive Board member 1999-2000 
Fisher, Frank R.1875 1945   
Fissell, P. T.1855     
Fitch, Charles Herbert1872 1935   
Fitch, Edwin P.1840     
Fitch, Horace Daniel1843 1928   
Fitzgerald, Carol E.1933 2019   
Fitzgerald, John J.1855     
Flaa, Joseph O.1893     
Flatt, Elmer E.1928 2006   
Fleeger, Lewis L.1864     
Floren, Olof O.1875 1942   
Flowers, Charles E. 'Charlie'1939   14 - LRC Executive Board member 1993-1998 - Minority Whip 1995-1996 and 1999-2002 
Flowers, Earl P.1877 1934 - Died in office August 23, 1934. 
Floyd, William1858 1950   
Flynn, John P. 'Pat'1922     
Flynn, Richard1933 1991   
Flyte, Charles E.1934     
Foldager, Peter C.1876 1954   
Foley, Andrew P.1859 1932   
Foncanon, Charles Boyd1869     
Fonder, C. M.1872     
Foote, Lewis A.1858     
Forbis, Lewis P.1877     
Ford, Ole H.      
Fornell, Olaf B.1854     
Forney, Alva Clark1871 1956 - Lieutenant Governor 1925-1927 
Forney, J. F. 'Fritz'1915 2003   
Fosheim, Douglas G.1953     
Fosheim, Oscar1895 1981   
Fosness, Louis A.1897 1981   
Foss, Joseph J.1915 2003 - Governor 1955-1959 
Foss, Wilbur1921 2015 - Appointed January 23, 1961, to fill vacancy of Joe E. Lehmann, resigned in 1963. 
Fosse, Johannes J.1860 1935   
Fossum, Thorgrin A.1858     
Foster, H. C.1884     
Foster, John B.1906 1975   
Foster, John C.1917     
Foster, Kinsley G.1849 1927 - Won contested seat in January 1905. 
Foster, Red Dawn      
Fountain, Thomas1827     
Fowler, Carl1884     
Fowler, Charles1874     
Fowler, Elijah P.1844   - Elected to the House in 1891, but did not qualify. 
Fowler, James W.1845 1916   
Fowles, W. A.1876 1956   
France, Lawrence G.1885     
Francis, John W.1845     
Frank, H. J.1842 1916   
Frankenfeld, Donald L.1948     
Frantz, V. E.1889     
Frease, Milton1845 1923   
Frederick, Randall Davis1956   12 - Appointed to the House September 23, 1989. 
Fredrickson, Ernie M.1899     
Freelove, Arthur L.1876     
Freeman, Albert M.1883 1947   
Freeman, George W.1872 1954   
Freeman, Glenn T.1929     
Frei, Walter H.1885 1971   
Freiberg, Louis K.1925 2009   
Freitag, G. C.1878     
French, Levi B.1845   - Territorial Legislature 1881 
Freney, Charles B.1874     
Frerichs, Jason Elliott1984   10 - Minority Whip 2009-2010 - Minority Leader 2011-2014 - Minority Whip 2017-2018 
Frerichs, Kent E.1946   14 - LRC Executive Board member 1979-1980 - Assistant Minority Leader 1985-1988 
Frescoln, Emmet Orville1887 1972 - Speaker of the House 1923-1924 
Frick, Thomas J.1871     
Frieberg, August1863     
Frieberg, John1871 1928   
Friederich, William M.1874     
Frost, Larry E.1940     
Frost, William H.1854 1934   
Fry, Joel1832     
Fryberger, Jacob H.1879 1952   
Frye-Mueller, Julie1963     
Fryslie, Anton1859 1935   
Fryslie, Arthur Eugene 'Art'1941   12   
Fullerton, Leath Carroll1901 1961 - LRC Executive Board member 1961 - Died in office, October 20, 1961. 
Fulwider, Benjamin Franklin1839 1895   
Furchner, Carl Henry1898 1979 18 - LRC Executive Board member 1955-1958 
Furois, R. E. 'Dint'1922 1998   
Gabbert, Irwin A. 'Dutch'1905 1985   
Gabriel, Larry E.1946   16 - LRC Executive Board member 1985-1988 - Majority Whip 1988-1992 - Majority Leader 1993-1998 
Galvin, Edward S.1858 1928   
Gamble, David      
Gandy, Harry Luther1881 1957 - U.S. Representative 1915-1921 - First Democrat Congressman in the State. 
Gant, Jason M.1976     
Gardner, Charles W.1888 1977 - Chief Clerk of the House 1915-1918 
Gardner, Edgar1905 1977 10   
Gardner, Frank R.1856 1922   
Gardner, William1861 1957   
Gardner, William R.1881   20   
Garnos, Cooper Owen1965   13 - Majority Whip 2003-2010 - Resigned October 27, 2011 
Garrett, Ernest H.1889 1935   
Garver, D. E.1842     
Gassman, David B.1949     
Gates, Hobart H.1905 1999 14 - LRC Executive Board member 1951-1958 - Speaker of the House 1953-1954 - Speaker Pro tempore 1957-1958 
Gearey, Aaron M.1843     
Geisler, L. B.      
Geister, G. H.1873     
Gellerman, Fred W.1908 1998  - Elected to the House in 1957, did not serve. Carl T. Burgess served. 
Gellhaus, Derald B.1931 2013   
Gelling, Philip C.1850     
Gemmill, Ralph E.1914     
Gemmill, W. C.1853 1938   
Gensler, Earl1914 2002   
Gerber, Fred, Jr.1870 1941   
Gerhardt, Carl1857     
Gerhart, August N.1843     
Gering, John J.1888     
Gerken, John J. 'Jack'1922 1989 - LRC Executive Board member 1977-1978 - Commissioner of School & Public Lands 1979-1983 - Commissioner of School & Public Lands appointment July 25, 1984, left office November 8, 1984. 
German, A. H.1827     
Gerner, Karl      
Gibbs, Frank1925   10 - LRC Executive Board Vice Chairman 1967-1968 - LRC Executive Board Chairman 1969-1970 
Gibbs, Oliver      
Gibson, Peggy A.1949   - Minority Whip 2011-2014 
Giebink, Robert R.1916 2008 - Resigned May 21, 1971. 
Giedt, Theodore J. P.1873 1935   
Gierau, Henry J.1891     
Gilbert, Frank M.1871     
Gilbert, George W.1841 1908   
Gilbertson, Marvin T.1906     
Gilborne, Seth S.1874     
Gilby, Frank1867 1934   
Gilchrist, N. R.1860     
Giles, Alfred M.1860     
Gill, John DeEstean1873     
Gillespie, Margaret A. VandeMore1969   10 - Minority Whip 2003-2004, 2009-2010 - Assistant Minority Leader 2005-2008 
Gilliland, Samuel G.1878     
Gilmore, Frank M.1855     
Gilson, Charlotte A.1950     
Ginther, Fredrick R.1885     
Giving, Gerald Julian Renaas1900 1996   
Gjesdal, Lars1926   - Appointed July 12, 1961, to fill vacancy of Donald J. Stransky. 
Glanzer, Bob1945     
Glasner, Frank P.1873     
Glass, Wilbur S.1852 1922   
Glassgow, Marion Edward 'Ed'1934     
Gleason, David Guy1947     
Gleason, Neil P.1927 1990 10 - Died in office September 2, 1990. 
Gleason, William L.      
Glendinning, Gideon G.1873     
Glenski, Mary H.1930     
Glood, Royal J.1898 1967 10   
Glover, Merton1918     
Glover, Roy S.1890   12   
Glover, Thomas J.1950     
Glynn, Frank1874     
Goddard, Harlow A.1860 1896   
Goddard, R. S.1888 1961   
Goddard, Thomas M.1846     
Goddickson, N.1856 1935   
Godfrey, Arthur Eugene1881 1970   
Goff, A. M.1860     
Gold, Sidney Russell1857     
Goldman, E. W.      
Golseth, Harold1910 1961   
Gooch, L. C.1892 1954   
Good, Janet R.1944     
Goodman, F. M.1869     
Goodner, Ivan Wilbur1858     
Goodsell, James F.1852     
Goodwin, Joseph T.1831     
Goodwin, L. E.1883 1965   
Goodwin, Tim1955   - Majority Whip 2019-2020 
Gordon, Merritt J.1857     
Gordon, Thomas1861     
Gorman, James K.1849     
Gosch, Brian Gregory1971   10 - Appointed September 24, 2007, to fill vacancy of Alan Hanks. - Majority Whip 2009-2010 - Speaker Pro Tempore 2011-2012 - Speaker of the House 2013-2014 - LRC Executive Board member 2013-2016 - Majority Leader 2015-2016 
Gosch, Spencer1984   - LRC Executive Board member 2017-2020 - Speaker Pro Tempore 2019-2020 
Graber, John Chris1889 1976   
Grace, Fred J.1877     
Graff, Adolph Nelson1874 1949   
Graff, E. Klein1896 1982   
Graham, Robert1851   - Elected to the House in 1891, but did not qualify. 
Graham, V. A.1905     
Grams, William Lane1912 1983 14 - LRC Executive Board member 1973-1978 
Granger, Albert G.1880     
Grant, James A.1846 1927   
Grant, John1844     
Graves, Elmer C.1883 1950 12 - Elected to the House in 1950, but died before session. 
Gravning, Ole1889     
Gray, Bob1971   - LRC Executive Board member 2005-2012 - President Pro Tempore 2007-2012 
Graybill, Washington C.1851     
Greeley, Millard F.1851     
Green, Ansel T.1855     
Green, Sharon V.1943     
Green, Siegle1862     
Green, Thomas J.1936 2010   
Green, Vincent1953   - Assistant Minority Leader 1995-1996 
Green, Warren1869 1945 - Governor 1931-1933 
Green, Will H.1870 1922 - Died in office December 7, 1922. 
Greene, David S.1848     
Greene, F. H.1853     
Greene, Joseph M.1849 1908 - Territorial Legislature 1889 
Greenfield, Brock Landon1975   20 - LRC Executive Board member 2003-2004, 2017-2020 - President Pro Tempore 2017-2020 - LRC Executive Board Vice Chair, 2017 - LRC Executive Board Chair, 2018 
Greenfield, Lana1951     
Gregerson, Richard O.1932 2017   
Gregg, Harry M.1840 1910 - Territorial Legislature 1885 
Gregory, Cornelius Wallis1839 1913   
Greseth, Mona M.1930     
Grey, John C.1884     
Grieves, Don G.1908 1983 - LRC Executive Board member 1955-1956 
Griffith, Harry Morton1889     
Griffiths, W. M.1867 1950 12 - Died in office December 30, 1950. 
Grigsby, Sioux Kingsbury1873 1968 - Lieutenant Governor 1945-1949 
Grinde, Carl A.1857 1943   
Groce, John H.1849   12   
Gropengieser, John H.1856 1937   
Groseth, Joe M.1906 1977 10   
Gross, Benny J.1919 2011 18   
Gross, Evan Frederick1853     
Gross, Randy1949   - LRC Executive Board member 2019-2020 
Gross, Robert G.1919     
Groth, G. K.1866 1924   
Gruenwald, Max1931 2009   
Grupe, Merl1906     
Gubbrud, Archie M.1910 1987 10 - LRC Executive Board member 1955-1960 - LRC Executive Board Secretary 1957-1958 - LRC Executive Board Chairman 1959-1960 - Speaker of the House 1959-1960 - Governor 1961-1965 
Gudahl, Peter1879     
Guenthner, Christoph1853     
Guericke, Conrad1864 1938   
Guilfoyle, William A.1879 1925   
Gullekson, K. A.1856     
Gullickson, Alvin M.1940     
Gullickson, Dale1933     
Gullickson, Norval G.1914 1996   
Gunderson, Albert B.1904 1990 14 - LRC Executive Board member 1967-1972 - LRC Executive Board Chairman 1971-1972 - House Sergeant-at-Arms 1975-1984 
Gunderson, Andrew B.1876     
Gunderson, C. Henry1886     
Gunderson, Carl1864 1933 10 - President Pro tempore 1899-1900 - Lieutenant Governor 1921-1925 - Governor 1925-1927 
Gunderson, Charles J.1868 1927   
Gunderson, Dexter H.1923 1989 12 - LRC Executive Board member 1963-1966 and 1969-1970 - LRC Executive Board Vice Chairman 1965-1966 and 1969-1970 - Speaker Pro tempore 1967-1968 - Speaker of the House 1969-1970 
Gunderson, Ole1846     
Gunderson, Ole M.1879 1956   
Gunnarson, Theodore A.1855 1930   
Gunnison, George H.1862     
Gunvordahl, Harold1881 1949   
Gurney, Joseph T.1859 1936   
Gustafson, Oscar Arvid1891 1984   
Guthmiller, John J.1899 1957  - Elected to the House in 1957, resigned due to poor health. 
Guthrie, Sylvester A.1868 1945   
Gutzler, Rodney E.1946 2014   
Haafke, W. F.1878     
Haakenstad, Iver L.1878 1967   
Haas, Roy W.1891 1958   
Hackl, Thomas P.1976     
Hadd, Edwin J.1915     
Hafner, Frank L.1891   12 - Appointed November 6, 1961, to fill vacancy of Carroll Fullerton. 
Hafner, M. E.1888 1973   
Hagen, O. S.1869     
Hagen, Oscar William1917 1985   
Hagen, Richard E. 'Dick'1937 2002 20 - Died in office September 22, 2002. - Elected to the Senate in 2003, posthumously. 
Hagg, Rexford A. 'Rex'1957   10 - Majority Whip 1993-1994 - Speaker Pro tempore 1995-1996 - Speaker of the House 1997-1998 - LRC Executive Board member 1997-1998 
Hagg, S. J.1870   12   
Haggar, Don K.1957   - Majority Whip 2015-2016 - LRC Executive Board member 2015-2016 - Speaker Pro Tempore, 2017 - Resigned June 27, 2017 
Haggar, Donald A.1924 2013 - Elected to the House in 1961, but failed to qualify. 
Hague, George1871     
Hahn, Edward1883     
Hainje, Richard G. 'Dick'1956   - Majority Whip 1999-2000 - Assistant Majority Leader 2001 - Resigned November 12, 2001; President Bush appointment; Regional Director of the Federal Emergency Management Agency for Federal Region VII. 
Hair, George E.1859     
Hajek, Anne C.1951     
Hale, Cabell1884 1973   
Hale, John D.1847 1929 12 - Territorial Legislature 1881 
Haley, Patrick E. 'Pat'1949   12 - LRC Executive Board member 1991-1996, 2005 - Minority Whip 1993-1994 - Minority Leader 1997-2000 
Hall, David1850     
Hall, Edgar C.1880     
Hall, Frank I.1861     
Hall, John C.1857     
Hall, Philo1865 1938 - Attorney General 1903-1907 - U.S. Representative 1907-1909 
Hall, Rodney1928   - LRC Executive Board member 1973-1974 
Hallberg, Gus E.1876 1937   
Halleen, Shirley K.1935     
Halley, Walter F.1895 1932   
Halling, Beverly1931     
Hallock, Morris G.1926   - Elected to the House in 1968, but resigned in January 1969 
Halls, Anton Christian1889 1956 10 - Speaker Pro tempore 1943-1944 - Speaker of the House 1945-1946 
Halverson, Clayton J.1955     
Halverson, Harold W.1926 2002 26 - LRC Executive Board member 1983-1992 and 1995-2000 - President Pro tempore 1990-1992 and 1995-2000 - Minority Leader 1993-1994 - LRC Executive Board Chair 1997-1998 
Halverson, Vince E.1912   - LRC Executive Board member 1955-1956 
Halvorson, Herman C.1865 1940   
Ham, Arlene H.1936     
Ham, Carl1921 2001 12   
Ham, Charles1851 1941   
Ham, Donald J.1934 1993 16 - Assistant Majority Leader 1979-1982 - Speaker Pro tempore 1983-1984 - Speaker of the House 1985-1986 - LRC Executive Board member 1985-1992 - Majority Whip 1987-1990 - LRC Executive Board Vice Chairman 1989-1990 
Ham, Eardley L.1882 1961   
Ham, Ernest B.1896 1975 10   
Hamaker, Chellis A.1880 1969   
Hamaker, Jerome E.1849 1916   
Hamiel, Noel L.1947     
Hamilton, Finis A.1841     
Hamilton, James1865     
Hamm, John N.1861 1941   
Hammer, Alfred O.1901 1968   
Hammer, Carl1878 1944   
Hammer, Frank1840     
Hammer, John H.1894     
Hammerquist, Earl N.1889 1951 - Commissioner of School & Public Lands 1939-1943 
Hammock, Dayle1947   - Appointed January 7, 2019, to fill vacancy of Chuck Turbiville. 
Hampton, Fred P.1876 1954   
Hamre, Albert O.1915 1993 - LRC Executive Board member 1957-1958 - State Treasurer 1959-1963 and 1967-1969 - State Auditor 1963-1967 
Haney, 1852 1948 - Supreme Court Justice 1896-1913 
Hanks, Alan Ethan1960   - Resigned July 2, 2007; elected Mayor of Rapid City 
Hanley, William F.1862 1932   
Hanna, Frank M.1856    - Elected in 1903, served 4 days - Election contested. 
Hanning, Harley C.1904 1979   
Hanse, Ole L.1853     
Hansen, Henry J.1870 1950   
Hansen, Jon1985   - Majority Whip 2013, 2019-2020 - Resigned August 15, 2013 
Hansen, Lowell C., II1939   - Speaker Pro Tempore 1975-1976 - Speaker of the House 1977-1978 - LRC Executive Board member 1977-1978 - Lieutenant Governor 1979-1986 
Hansen, Thomas M. 'Tom'1939   10 - LRC Executive Board member 2007-2008 
Hansmeier, H. P.1874     
Hanson, Arthur N.1892 1950 - Died in office May 23, 1950. 
Hanson, Clifford O.1903 1982   
Hanson, Gary D.1949   12 - Assistant Minority Leader 2005-2010 - Elected to LRC Executive Board in March , 2010 to fill vacancy from Maher resignation from Executive Board due to party affiliation change. 
Hanson, Gary W.1950   - Public Utilities Commissioner 2003- 
Hanson, Gordon A.1887 1974   
Hanson, Hans1857 1939   
Hanson, Hans1890     
Hanson, Martin1891 1953 - Appointed in 1950 to fill vacancy of Thomas Shelsta. 
Hanson, Peter W.1883 1961   
Hanson, Wallace B.1924 2008 10   
Hanson, Wendell H.1919     
Hanten, John Baptist1859 1940   
Hanten, John H.1885 1955   
Harding, G. Homer1925   18 - Minority Leader 1975-1976 - Majority Leader 1977-1988 - LRC Executive Board member 1979-1984 - State Treasurer 1991-1994 
Harding, Guy U.1889 1966   
Harding, Louis F.1923 2002   
Hardy, John Phillip1866     
Hare, Joseph1853 1929   
Hargens, Dale E.1954   - Minority Whip 2003-2004 - Minority Leader 2005-2008 
Harkness, J. S.1866     
Harnisch, Herman F.1877     
Harrington, Malon W.1835     
Harris, John W.1875 1919   
Harrison, Charles M.1851     
Harrison, Claude V.1875 1961   
Harrison, Michele1963     
Harrison, Robert J.1881     
Hart, Glenn D.1874     
Hart, Glenn W.1900     
Hart, James1842 1916   
Hart, Michael E.1853     
Hartwell, H. P.1867     
Hartz, J. B.1881     
Haskell, Robert Elton1934     
Hassard, Helena B.1930 2009   
Hasvold, Helmer Richard1874     
Hasvold, Lauritz1848 1929   
Hatch, Charles R.1882 1963   
Hatch, Ira A.1855     
Hatch, Scott C.1895   - LRC Executive Board member 1951-1952 
Hatton, John T.1843 1924   
Hauck, Jacob J.1870 1922   
Hauck, William D.1912   - Appointed in 1957 to fill vacancy of John Guthmiller. - LRC Executive Board member 1961-1962 
Haufschild, Fred1920     
Haug, Alfred1885 1974   
Haugaard, Steven G.1956   - LRC Executive Board member 2017-2020 - Speaker Pro Tempore, 2018 - Speaker of the House 2019-2020 
Hauge, Arlen Lee "Arnie"1941     
Haugo, Roger1933   - Appointed January 2, 1971, to fill vacancy of David Billion. 
Haugse, Martin1896 1975   
Haugse, Ole O.1854 1934   
Hauschild, Wayne A.1925 2000 10   
Haven, F. G.1885 1969 10   
Haverly, Jeffrey K.1958   10   
Haverly, Terri L.1957     
Hawgood, John N.1852     
Hawkins, E. D.1866     
Hawks, Paula1975   - Minority Whip 2015-2016 
Hawley, Lou C.1867     
Hawley, Spencer1953   - LRC Executive Board member 2013-2018 - Minority Leader 2015-2018 
Hawley, Woodrow Kermit1919 1985 - LRC Executive Board member 1967-1972 
Hayes, Charles R.1899 1968 - Supreme Court Justice 1947-1951 
Hayes, John C.1840     
Hayes, Robert C.1864 1947   
Hayes, T. E.1875     
Hayward, Clarence E.1858     
Healy, Erin1987   - Minority Whip 2019-2020 
Heath, Henry H.1846     
Heaton, Alfred1820     
Hebal, Joseph1849   10   
Heck, Leo D.1897     
Hedrick, Harry S.1873     
Heeren, W. E.1850     
Heffernan, Edward      
Hegdal, Mathias A.1849 1913   
Heglin, Fred1859     
Heide, S. D.1872     
Heidepriem, Fred C.1887 1961   
Heidepriem, Herbert A.1922 1993 10 - LRC Executive Board member 1967-1968 
Heidepriem, Scott N.1956   12 - Speaker Pro tempore 1985-1986 - Appointd April 27, 1989, to fill vacancy of Mary McClure. - Minority Leader 2007-2010 
Heilman, John B., Jr.1920 2013   
Heilman, John C.1842 1891  - Died in office March 4, 1891. 
Heineman, Phyllis Mary1948   16 - Appointed November 1, 1999, to fill vacancy of Dana Windhorst. - LRC Executive Board member 2001-2006, 2013-2016 
Heinemann, Leslie J.1955   - Majority Whip 2017-2018 
Heinert, Troy Everett1972   - Assistant Minority Leader 2015-2020 - LRC Executive Board member 2019-2020 
Heintz, Henry1848 1919   
Heintz, John L.1847     
Heintz, M. F.1876 1943   
Helgerson, Gustav H.1875   - State Treasurer 1917-1921 
Helgerson, L. C.1882     
Helgerson, M. E.1885     
Helgerson, N. O.1845     
Heller, Lowdon1924 2016   
Helm, Percy H.1880     
Helvig, Alert O.1883 1962   
Helvig, Ole A.1843 1920 - Territorial Legislature 1879 and 1885 
Hembd, H. W.1899 1979   
Henault, Dennis1860     
Henderson, Frank E.1928 2012 - Supreme Court Justice 1979-1994 
Henderson, Stephen1861     
Henjum, Iver J.1884 1966 12   
Hennies, Donald D. 'Don'1934     
Hennies, Thomas L.1939 2009   
Henry, Albert B.1849 1917   
Henry, James T. L.1848     
Hepperle, Fred1863 1924 - Commissioner of School & Public Lands appointment in 1913 - Served 1913-1917 
Hepperle, John Joseph1873 1930   
Herbst, Ed1901   10   
Herington, Birtrum F.1859     
Herman, John1859 1914   
Hermann, William C.1874   18   
Herreid, Arthur1900     
Herrick, Arthur Frank1849 1938   
Herrman, Wesley1897 1954   
Herseth, R. Lars1946   20 - Minority Leader 1979-1986 (House) and 1995-1996 (Senate) - LRC Executive Board member 1991-1994 - President Pro tempore 1993-1994 
Herseth, Ralph E.1909 1969 - Governor 1959-1961 
Hersey, Charles Bush1858 1928   
Hersrud, James R.1946     
Hertz, Gottlieb1876     
Hesla, Endre S.1852     
Hesnard, T. G.1886 1945   
Hess, Samuel L.1854     
Hestad, Benjamin U.1875 1943   
Hiatt, Jesse1842     
Hickey, Steve1967   - Resigned September 1, 2015 
Hickman, George1849     
Hicks, Jesse David1861 1937   
Hieb, Raymond1914     
Hier, Perry O.1920 1995 - Appointed December 18, 1985, to fill vacancy of Joseph H. Barnett. 
Highley, L. E.1876 1935   
Hildebrandt, Fred Herman1874 1956 - U.S. Representative 1933-1939 
Hildebrandt, Herman A.1848 1924   
Hilgemann, Calvin C.1901     
Hill, Arley D.1911 1975   
Hill, Hiram H.1826 1907   
Hillard, Carole1936 2007 - Resigned June 27, 1994. - Lieutenant Governor 1995-2002 
Hillestad, Edmund1861 1946   
Hillgren, Ralph O.1897 1974 18   
Hills, Thomas R.1939     
Hilton, Henry1835 1905   
Hilzinger, George1850     
Hinckley, Henry C.1851     
Hinckley, M. R.1858     
Hindman, Daniel T.1839 1915 - Lieutenant Governor 1897-1899 
Hines, Neal Edward1950   - Served in the Iowa Legislature 1974-1978 
Hinrichs, J. C.1882 1955   
Hirsch, Robert William1925 2004 13 - LRC Executive Board member 1957-1966 - LRC Executive Board Chairman 1961-1962 - Majority Leader 1969 - Resigned in December 1969. 
Hitchcock, Herbert Emery1867 1958 - U.S. Senator 1936-1938 
Hockensmith, L. E.1879     
Hockett, Curtis M.1875     
Hodges, Joyce E.1930     
Hodgin, A. A.1866     
Hodson, Orville A.1882 1970   
Hodson, Richard W.1923 1981 - LRC Executive Board member 1965-1966 
Hoelscher, Charles1876   10   
Hoerth, Alan C.1946     
Hoese, William R.1897     
Hoese, William, Jr.1868   - President Pro tempore 1913-1914 
Hoffman, Albert N.1880     
Hoffman, Amasa1868     
Hoffman, Charles B.1960   - Majority Whip 2011-2012 - LRC Executive Board member 2013-2014 
Hoffman, Charles, Sr.1877     
Hoffman, F. C.1857     
Hoffman, George Harrison1838 1922 - Lieutenant Governor 1891-1893 
Hoffman, LeRoy G.1932 1980   
Hoffman, Robert G.1925     
Hogen, Marvis T.1923 1997 10 - LRC Executive Board member 1979-1982 
Hoidel, Thomas1849     
Hokenstad, Ole1846 1916   
Holbeck, James C. 'Jim'1958     
Holdridge, Delazon Delimar1833 1919   
Holen, Hans P.1860 1942   
Holien, Ried Scot1969   - Majority Whip 2013-2015 (replaced by Alan Solano May 9, 2015) 
Holleman, John E.1864     
Hollenbeck, Mark John1960   - LRC Executive Board member 1993-1994 
Hollien, Andrew1855     
Holm, O. J.1865 1931   
Holman, John1867     
Holmes, Thomas R.1949     
Holmes, Washington W.1859     
Holmes, Zachariah1853 1930   
Holmgren, Oscar1885     
Holmquist, Peter1847 1920   
Holst, John Thomas1886 1946   
Holum, Kenneth1915 1998 - LRC Executive Board member 1951-1952 
Homan, Ralph1928 2013   
Hood, E. James 'Jim'1947   10 - Speaker Pro tempore 1989-1990 - Speaker of the House 1991-1992 - LRC Executive Board member 1991-1992 
Hooper, D. S.      
Hopkins, Frank M.      
Hopkins, George E.1837     
Hopkins, Henry M.1853     
Horgan, C. J.1865 1961   
Hornbeck, Charles H.1881     
Hornby, Henry1870     
Horner, Henry R.1853 1930   
Hornstra, John J.1876     
Horsfall, Allen L.1860     
Horton, Joseph H.1857     
Hosmer, E. F.1851   - Territorial Legislature 1885 
Houck, L. R. 'Roy'1905 1992 - LRC Executive Board member 1951-1952 - Lieutenant Governor 1955-1959 
Hougen, Lewis S.1855     
Houlton, L. E.1874     
Houlton, Lawrence J.1872 1945   
House, Leroy S.1841     
Houston, J. W.      
Hove, Andrew O.1854     
Hove, O. H.1906   - Speaker Pro tempore 1939-1940 - Speaker of the House 1943-1944 
Hovren, John1834     
Howard, Charles Allen1865     
Howard, Charles T.1856 1936 - Speaker of the House 1895-1896 
Howard, Julius M.1848 1912   
Howard, Taffy1968     
Howe, Ben1897 1980   
Howe, Henry1855 1931   
Howe, John I.1876 1911   
Howell, George Brooke1876 1960 10   
Howell, James R.1844     
Howell, Samuel Preston1837 1904   
Howes, William Washington1887     
Howie, Gordon K.1949     
Howlett, Dale Lee1948   - Assistant Minority Leader 1991-1992 
Hoxeng, James H.1856 1931   
Hoy, Frank1878     
Hubbard, Charles W.1849     
Hubbard, Edwin E.1886 1977 10 - LRC Executive Board member 1951-1952 
Hubbel, Lora Lyn1958     
Huber, Oscar E.1917 2017 12   
Huddle, Forrest C.1900     
Huff, Willard H.1852 1926   
Huffman, Loyall F.1903     
Hughes, John R.1856     
Hughes, Richard B.1856 1930   
Huhn, Thomas1842 1919   
Huke, Oscar1901 1984   
Humiston, J. D.1863     
Hummel, R. A.1880 1970   
Humphrey, H. H.1882     
Humphrey, John M.1863 1927   
Humphrey, Louise B.1905 1975   
Hundstad, James E. 'Jim'1941   12 - LRC Executive Board member 2007-2008, 2011-2012 - Assistant Minority Leader 2011-2012 
Hunhoff, Bernie1951   14 - Minority Leader 1997-1998 - Minority Leader 2009-2014 
Hunhoff, Jean M.1953   20 - Majority Whip 2003-2004 - LRC Executive Board member 2005-2010 - LRC Executive Board Vice Chair 2007-2008 - LRC Executive Board Chair 2009-2010 
Hunking, Loila1939     
Hunt, Roger W.1938 2018 20 - Speaker Pro Tempore 1997-1998 - Speaker of the House 1999-2000 - LRC Executive Board member 1999-2000, 2015-2016 
Hunter, Fred J.1890 1985   
Hunter, Harry F.1860   - Territorial Legislature 1889 
Hunter, Robert1876     
Huntley, Con R.1859     
Huntley, S. F.1840     
Hurlbert, Roy O.1896 1960 - Appointed in 1949, to fill vacancy of Elmer Graves; Re-appointed in 1951. 
Hurlbut, R. R.1883 1913   
Hursh, Will T.1871 1921   
Hustead, D. W. 'Bill'1927 1999 - Appointed February 8, 1963, to fill vacancy of George W. Mills. - LRC Executive Board member 1965-1968 
Hutchinson, George Smith1853     
Hutchinson, Robert M.1858     
Hutmacher, James K. 'Jim'1953   - Minority Whip 1997-1998 - Minority Leader 1999-2002 
Hyde, Charles Lee1892 1986   
Hyde, M. A.1879 1959   
Indseth, Berger A.1918     
Ingalls, Marie C.1936   - Majority Whip 1991-1992 
Ingerson, J. B.1865     
Ingles, T. J.1873 1938   
Ingram, Dwight B.1855     
Ingvaldson, Nels M.1855     
Ingvalson, E. L. 'Paddy'1911 1991   
Inman, Darwin M.1838 1913 - Territorial Legislature 1877 and 1881-1883 
Iron Cloud, III, Edward1964     
Isaacson, Isaac1873 1941   
Isaak, William, Jr.1876     
Issenhuth, Edward C.1858 1940   
Issenhuth, Franklin1877     
Iverson, Lewis A.1858 1918   
Jackson, D. W.1855     
Jackson, Franklin T.1860     
Jackson, Horace R.1907 1987   
Jackson, Jack1922 1986   
Jacobs, Bernard C.1832 1908   
Jacobs, Herman1897     
Jacobs, Walter G.1868     
Jacobs, William J.1878 1947   
Jacobsen, Edmund L.1893     
Jahraus, William1885 1956   
James, Edward R.1900     
James, Ralph N.1876 1945   
Jamison, Greg1064     
Janda, Ray K.1901 1948   
Jardine, John1843     
Jaspers, Michael V. 'Mike'1970   - Majority Whip 1999-2002 - Elected to House 2003, never served. - Appointed January 7, 2003, to fill vacancy of Mitch Richter. 
Jaynes, Grailey H.1873 1935   
Jeffries, Henry L.1873 1954   
Jekyll, David T.1861     
Jelbert, James D.1917 2006 18 - LRC Executive Board member 1959-1960 and 1967-1968 - Speaker Pro tempore 1965-1966 - Speaker of the House 1967-1968 
Jenkins, George J.1856     
Jenkins, John C.1864     
Jenkins, Llewellyn P.1862 1927   
Jennings, Verne H.1897 1982   
Jensen, Alex1987     
Jensen, Arnold1912     
Jensen, August1862     
Jensen, Barry M.1945   - LRC Executive Board member 2005-2006 
Jensen, C.1868     
Jensen, Eldon S.1942     
Jensen, Ingeman A.1917     
Jensen, Joseph Conrad1888 1988   
Jensen, Kevin D.1954   - Majority Whip 2019-2020 
Jensen, Phillip M.1952   12   
Jensen, William M.1903   10   
Jerke, Gary1948   - Appointed January 5, 2005 to fill vacancy of Bill Van Gerpen. 
Jerstad, Sandra Isabelle1943     
Jillson, Joe      
Johns, Timothy Robert1948   - LRC Executive Board member 2015-2016 
Johnson, A. J.1830     
Johnson, Aaron W.1862     
Johnson, Albert1874     
Johnson, Andrew H.1854     
Johnson, Andrew Nels1866 1947   
Johnson, Bennie1883 1950   
Johnson, Bernice Carter1923 1989   
Johnson, Carl John1844 1937   
Johnson, Carl Otto1878 1966 10   
Johnson, Carol Ann1943 2003 - Appointed April 27, 1989, to fill vacancy of Scott Heidepriem. 
Johnson, Charles E.1856 1925   
Johnson, Chris P.1960   - LRC Executive Board member 2019-2020 
Johnson, Clarence H.1899 1958   
Johnson, Cortland1925 2011   
Johnson, D. A.1871     
Johnson, David1859 1933   
Johnson, David1960     
Johnson, Douglas W. 'Doug'1940 2008   
Johnson, Edwin S.1857 1933 - U.S. Senator 1915-1921 (Democratic ticket) - First U.S. Senator to be elected by direct vote of the people. 
Johnson, Edwin Severine1894 1958   
Johnson, Elton F.1921     
Johnson, Ernest L.1901 1983   
Johnson, Gustaf A.1895 1946 - Died in office September 16, 1946. 
Johnson, Homer W.1859     
Johnson, Iver J.1867     
Johnson, J. George1854     
Johnson, Jacob1851     
Johnson, Jewett J.1909 1968   
Johnson, John A.1864     
Johnson, John B.1885 1985   
Johnson, John Eric1869 1913   
Johnson, John K.1859     
Johnson, John K.1873 1953   
Johnson, John M.1871 1947   
Johnson, John P.1854     
Johnson, John T.1885   22   
Johnson, Joseph O.1906 1995   
Johnson, Juel S.1923 2008 10   
Johnson, L. A.1879   - Resigned in 1957. 
Johnson, Louis1885   10   
Johnson, Louis L. 'Roy'1915   - LRC Executive Board member 1967-1972 - President Pro tempore 1971-1972 
Johnson, Mark D.1869     
Johnson, Oscar C.1880 1966   
Johnson, Robert A.1921 2014 - LRC Executive Board member 1961 
Johnson, Roy M.1908 1994 14   
Johnson, Stanley A.1925 2013 - Appointed Janaury 1, 1968, to fill vacancy of Axel A. Nepstad. - LRC Executive Board member 1971-1974 
Johnson, Stengrin T.1857     
Johnson, Tim P.1946   - LRC Executive Board member 1985-1986 - U.S. Representative 1987-1997 - U.S. Senator 1997-2014 
Johnson, Ulysses Grant1864 1947   
Johnson, Walter K.1907 1976   
Johnson, Walter W.1911     
Johnson, William 'Bill'1927 1999 - Resigned in December 1962. 
Johnson, William C.1928     
Johnson, William Wilbur1852 1924   
Johnson, William "Bill" J.1930 2016 10 - LRC Executive Board member 1997-1998 
Johnston, George A.1847   - Public Utilities Commissioner 1893-1896 
Johnston, James Montgomery1867   10   
Johnston, John Mark1962   - Resigned May 31, 2013 
Johnston, Richard H.1873 1931  - Died in office April 15, 1931. 
Johnston, Samuel1842     
Johnston, Tom H.1885     
Jolley, John Lawlor1840 1926 - Territorial Legislature 1867-1868, 1874 and 1881 - President of the Territorial Council 1874 - U.S. Representative 1891-1893 
Jolly, Joseph1843 1924   
Jones, Albert James1870 1943   
Jones, Arthur L.1924   - LRC Executive Board member 1969-1970 
Jones, Arthur W.1904 1985 18 - LRC Executive Board member 1957-1960 
Jones, Charles D.1850 1893   
Jones, Charles (Chuck) Eastman1971   - Appointed December 17, 2013, to fill vacancy of Russell Olson 
Jones, Chet1949   - LRC Executive Board member 1995-1996 
Jones, Curtis H.1934 2010 16 - LRC Executive Board member 1973-1974 
Jones, Daniel D.1862     
Jones, Francis W.1892 1974   
Jones, Howard1893   - First Assistant Clerk of the House 1935 - Chief Clerk of the House 1936 
Jones, James Gurnal1851   - Territorial Legislature 1887-1889 
Jones, James H. 'Jack'1927 2014   
Jones, John B.1927     
Jones, Kenneth B.1930     
Jones, Stephen1834     
Jones, Thomas (Tom) Arthur1940     
Jones, W. Paul1894     
Jones, William H.1874 1925   
Jones, William H.1848 1931   
Jordan, C. H.1859     
Jordan, Edward1872     
Jorgensen, Donald M.1919 2003   
Jorgensen, Kay S.1951   12 - LRC Executive Board member 1983-1984 
Jorgenson, J.1862     
Jorgenson, Julius1885     
Joseph, William P.1865 1944   
Judson, Havilah C.1853     
Judy, Elmer R.1885 1972   
Judy, Sherman Sheridan1888 1971   
Juhnke, Kent D.1955   13 - Majority Whip 2001-2002 - Resigned House seat November 17, 2011, to accept Senate appointment to fill vacancy of Cooper Garnos 
Junge, Frederick, Sr.1831     
Jungman, O. A.1910 1961   
Jurgensen, Jacob J.1867 1935   
Just, O. B.1905     
Kaas, Otto L.1877 1937   
Kabeiseman, Leo1880 1979  - Elected to Senate in 1956, never took oath due to ill health. 
Kaercher, Leonard M.1862     
Kaiser, Daniel1980     
Kammerer, J. F. 'Fritz'1897 1986   
Kandaras, Homer1929 2017 - Assistant Majority Leader 1973-1974 - Majority Leader 1975-1976 
Kane, Daniel J.1844     
Kane, Patrick J.1927     
Karlstad, Michael M.1854 1911   
Karr, Chris1980   - Majority Whip 2019-2020 
Katus, Thomas M.1940     
Kaufman, Fred S.1902 1976   
Kaufman, LeRoy J.1944 2019   
Kauth, Kenneth1924 2019 10   
Kayl, Lawrence E.1922 1970   
Kazmerzak, Douglas V. 'Doug'1954   - Election determined by House of Representatives. 
Keegan, James S.1854     
Kehm, Jacob L.1864     
Keith, Irwin A.1847     
Kell, Cecil Edward1886 1962   
Kellar, Andrew Jackson1835 1907   
Kellar, Kenneth C.1906 1981   
Kelley, Andrew1881 1939   
Kelley, Celia M.1872     
Kelley, Edgar1851     
Kelley, Edmund S.1853 1904   
Kelley, Jacqueline A.1949     
Kelley, John Edward1853 1941 - U.S. Representative 1897-1899 
Kelley, John F.1859     
Kelley, Patrick Henry1866     
Kelley, William Michael1895     
Kellogg, Dorothy M.1920 2018 10   
Kelly, Dick M.1941   - Appointed to Senate, July 1, 2002, to fill vacancy of Kermit Staggers. 
Kelly, Robert W.1935   - Resigned in 1976. 
Kelly, William F.1850     
Kelm, Marilynn1937    - Resigned in November 1975. 
Kelsey, Clayton1859     
Kelsey, Hagen1914   - Resigned in 1963. 
Kemper, A. H.1880 1954   
Kennard, George N.1852     
Kennedy, Craig1951   - Assistant Minority Leader 2019-2020 
Kennedy, Edward G.1844     
Kennedy, Howard Lloyd1928 2017 12   
Kennedy, Samuel A.1846     
Kennedy, Verne C.1892 1969   
Kenner, Patricia E.1929 2013 - LRC Executive Board member 1975-1978 
Kenney, Harry Thomas1881 1956   
Kerr, Robert Floyd1850 1921   
Kesling, James W.1939 2008 - Assistant Minority Leader 1973-1974 
Kettwig, Jason W.1974     
Keve, Cyrus J.1834     
Kidd, William H.  1902   
Killer, Kevin1979   10 - Shannon County name change to Oglala Lakota County eff. May 1, 2015 
Kime, Allan G.1899 1992 12   
Kimm, Martin1890     
Kindschy, John C.1852     
King, August1863     
King, Elsworth E.1865     
King, Frank G.1858     
King, Harold W.1892 1956   
King, John1844     
King, John H.1850 1906 - Public Utilities Commissioner 1889-1892 
King, John M.1840 1928   
Kingdon, John1876 1917   
Kingsbury, George Washington1837   - Territorial Legislature 1863-1866 
Kinney, T. L.1840     
Kinsley, Wilbert A.1859 1931   
Kinyon, Wilson B.1840 1917   
Kirk, George T.1918 1993 - Appointed July 29, 1969, to fill vacancy of William F. Clayton. 
Kirk, James, Jr.1889     
Kirk, John R.1882     
Kirk, John Smith      
Kirkeby, Mark Kenneth1960     
Kirkeby, S. T.1866 1947   
Kirschman, Patrick A.1954     
Kistler, Jesse1881     
Kittredge, Alfred Beard1861 1911 - U.S. Senator 1901-1909 
Kjeldseth, Carl G.1870 1931   
Kjelmyr, Peter1878     
Klaudt, Ted A.1958     
Kleinsasser, J. G.1887     
Kleinsasser, Jacob J.1872 1953   
Kleinsasser, John P.1897 1984   
Kleinsasser, Leland Paul1934   10   
Kleinsasser, P. P.1878     
Kleven, Leslie J.1930 1995 - Died in office April 19, 1995. 
Kleven, Marguerite M.1931   10 - Appointed June 9, 1995, to fill vacancy of Leslie J. Kleven, husband. 
Klindt, Henry1850     
Kline, Aaron M.1852     
Kloucek, Frank J.1956   22 - Minority Whip 1997-2000 and 2003-2004 
Klumb, Joshua M.1984   - Majority Whip 2019-2020 
Knebel, August1866 1927   
Kneeland, E. G.1871     
Kneip, Richard F.1933 1987 - LRC Executive Board member 1969-1970 - Minority Leader 1969-1970 - Governor 1971-1978 - Resigned July 24, 1978, to become Ambassador to Singapore. 
Knight, Andrew J.      
Knight, Elmer G.1881 1963 10   
Knight, Frank F.1855     
Knight, J. F.1867     
Knight, Nickolas E.1866 1946 - Commissioner of School & Public Lands 1917-1925 
Knight, William Oscar1875     
Knipe, George S.1853     
Knipfer, Warren J.1897     
Knochenmus, Henry J.1908 1989   
Knodt, Charles W.1856 1938   
Knudsen, Henry I.1899 1983 18   
Knudson, David L.1950   - Majority Leader 2007-2010 
Knudson, Knute, Jr.1949   - Majority Whip 1985-1986 
Knudson, Loyd G.1910 1999   
Knudtson, W. T.1888     
Knutson, Robert J., Jr.1933 2006   
Knutson, Sidney R.1915 2008   
Knutson, Tommy H.1929     
Kobernusz, O. F.1879 1949   
Kocer, Albert J.1930 2018 18   
Koch, Adolph1869 1952   
Koch, Harold D.1930 2014   
Koch, Herman1853 1945   
Koch, John A.1861 1938   
Koehn, H. H.1866 1945   
Koehn, Michael A.1961     
Koenig, Adam L.1884     
Koenig, August1845     
Koepsel, William1858     
Koetzle, Gilbert 'Gil'1952 2013 16 - Minority Whip 1997-2000 - LRC Executive Board member 2003-2008 
Koistinen, Alton B. 'Al'1948     
Kolbeck, Jack1952     
Kolbo, Jack1935 2002   
Kolker, Richard1939     
Konold, Claire B.1938   - LRC Executive Board member 2001-2004 
Kooistra, Clarence L.1941   10   
Kopecky, Bernie D.1931 2008 - Minority Leader 1970-1972 
Kopp, Donald D.1942     
Koskan, John M.1955   16 - Majority Whip 2003-2004 - Assistant Majority Leader 2005-2006 
Kostboth, Charles1853 1923   
Kostboth, Robert C., Sr.1918 2004   
Koth, Lance R.1951     
Kotrba, Mary E.1874     
Kovarik, Wenzel J.1932     
Kraus, Elizabeth Anne1943   - Majority Whip 2005-2006 
Krautschun, Harvey C.1949   12 - Speaker Pro tempore 1993-1994 - Speaker of the House 1995-1996 - LRC Executive Board member 1995-1996 
Krebs, Shantel S.1973   10 - Majority Whip 2007-2008 - LRC Executive Board member 2009-2010 - LRC Executive Board Vice Chair 2009-2010 - Majority Whip 2011-2012 
Kredit, Kenneth E.1931     
Krell, Nick1877 1962   
Kretschmar, Paul O.1902 1985 10   
Kreuscher, Peter1856     
Kribs, P. D.1846     
Kringen, Dale1935 2011   
Kriz, Frank1879 1951   
Kroger, Michael Wayne1951     
Krogman, Dean M.1950   - Appointed July 12, 1984, to fill vacancy of Sheldon E. Cotton, resigned November 21, 1989. 
Krueger, E. F.1874 1945   
Krueger, Tom1950     
Krull, Jacob E.1909     
Krull, Jacob J.1938 2016 10 - LRC Executive Board member 1975-1976 - Minority Leader 1979-1982 
Kruse, John1845     
Kuehn, William W.1882     
Kuhler, Deborah G.1952     
Kuhns, Albert Joseph1856 1940   
Kull, Barton K.1927 2003   
Kumm, Doris J.1929 2005 10   
Kundert, Alice E.1920 2013 - State Auditor 1969-1979 - Secretary of State 1979-1987 
Kundert, Gust1913 2000   
Kundert, Otto. J.1888 1950   
Kunstle, Jacob1902 1985  - Appointed July 18, 1972, to fill vacancy of Eldon L. Smith. 
Kurle, W. E.1905 1974 - LRC Executive Board member 1953-1954 
Kurtenbach, Al    - Appointed January 27, 2004, to fill vacancy of Larry Diedrich. 
Kyle, James Henderson1854 1901  - U.S. Senator 1891-1901, died in that office. 
L'Esperance, Donald A.1919 2008 - LRC Executive Board member 1961-1962 
La Breche, Charles1827 1898 - Territorial Legislature 1865 
Labrie, R. W.1875 1952   
Lacey, William 'Charlie'1907 1997 20   
LaCraft, Orator Henry1850 1940   
Ladd, G. D.1862     
LaFleur, Mitchell C.1954     
Lake, John A.1961     
Lakings, John      
Lakness, Milton1934     
Lammers, Jerome B.1937   16 - LRC Executive Board member 1979-1986 - LRC Executive Board Chairman 1979-1980 - Speaker Pro tempore 1981-1982 - Speaker of the House 1983-1984 - Majority Whip 1986 - Majority Leader 1987-1992 
Lammers, Jerry Henry1893 1983   
Lamont, Frances S. 'Peg'1914 2008 14   
Lanam, W. A.1868     
Lane, Frank1844 1942   
Lane, Thomas W.1857     
Lange, Gerald F.1928   18 - LRC Executive Board member 1999-2004 
Lange, Moritz Adelbert1855 1948   
Langer, Kris1969   - Appointed August 15, 2013, to fill vacancy of Jon Hansen - Majority Whip 2015-2018 - LRC Executive Board member 2017-2020 - Majority Leader 2019-2020 
Lansing, L. W.1837     
LaPointe, Michael    - Appointed January 7, 2003, to fill vacancy of Richard 'Dick' Hagen. 
Laprath, Thomas A.1902 1972   
Larkin, Charles A., Jr.1921 1996   
Larkins, John1860     
Larsen, L. P.1872     
Larsen, Martin Ingval1889 1930 - Died in office September 24, 1930. 
Larsen, Mrs. L. M.1894   - Secretary of State 1943-1947 
Larson, A. D.1883 1957   
Larson, Adolph L.1879 1931   
Larson, Donn C.1953     
Larson, Gilbert1880 1948   
Larson, J. F.1874     
Larson, John M.1862     
Larson, L. M.1891     
Larson, L. M.1874 1959 10   
Larson, Lewis A.1878 1950   
Larson, Lewis E.1882     
Larson, Lewis John1874 1933 15 - President Pro tempore 1933 - Died in office July 18, 1933. 
Larson, Nels1853     
Larson, Sidney J.1906 1976   
LaRue, Maurice1947 2012   
Lassegard, S. C.1891 1974   
Latterell, Isaac James1981   - LRC Executive Board member 2013-2014 - Majority Whip 2017-2018 
Laurson, Charles A.1867     
Laustsen, David S.1947   11 - Resigned August 11, 1987, to attend law school. 
Lavender, A. W.1842     
Law, Thomas James1870 1962   
Lawler, James F. 'Jim'1935     
Lawrence, John E.      
Lawrence, Ole1872     
Lawrence, William D.      
Lawson, James Marshall1863 1922 10 - Speaker of the House 1893-1894 - President Pro tempore 1901-1902 
Lawson, Oscar E.      
Laxson, John G.1867 1911   
Laxson, L. J.1893 1938   
Leach, Joseph1849 1927   
Leafstedt, Wendell Eugene1903 1990   
Leathers, Joel 'Joe'1894 1967 - LRC Executive Board member 1963-1964 
Lebrun, Gene N.1939   - LRC Executive Board member 1971-1974 - Speaker of the House 1973-1974 
LeClaire, A. F.      
LeCocq, Frank, Jr.1858   - Public Utilities Commission 1901-1907 
Leddy, Arlo1932 1998   
Lederman, Daniel Isaac1972   - Majority Whip 2013-2014 - Assistant Majority Leader 2013-2015 - Resigned March 30, 2015 
Lee, Ben E.1856 1931   
Lee, Floyd1899     
Lee, Harold C.1900     
Lee, Roger G.1955     
Leedom, Boyd Stewart1906 1969 - Supreme Court Justice 1951-1955 
Leedom, Chester Nevius1882 1938   
LeGrand, Louis E.1922 1986   
Lehmann, Joe E.1887   12 - Elected to the Senate in 1961, but failed to qualify. 
Leighty, Ronald1930     
Lennan, Charles E.1848     
Leppelman, L. C.1863     
Lerew, Theodore1925 2001   
Lesmeister, Oren L.1966   - Minority Whip 2019-2020 
Lester, William Otis1864 1927   
Letellier, Roy D.1953   - Majority Whip 1995-1996 
Levins, P. F.      
Lewis, Ann M.1944     
Lewis, John H.1847 1929   
Lichter, Philip  1964   
Lien, Christian H.1867     
Lien, Edward O.1873 1960   
Light, Oral Burwain1886 1982 14   
Lightner, Mahlon T.1854 1929   
Liljedahl, George H.1904 1979   
Lillibridge, Louell Louis1910 1986 - LRC Executive Board member 1955-1956 
Lilly, Robert H.      
Limoges, Peter Michael II  1928   
Lincoln, Isaac1863   10   
Lind, V. J.1897     
Lindbloom, Otto A.1894 1980   
Lindgren, Nils J.1851     
Lindland, Eric H.1879 1971   
Lindland, George1867 1956   
Lindley, John F.1918 1971 - Lieutenant Governor 1959-1961 
Lindley, Samuel M.1860 1931   
Lindley, William1885     
Lindquist, Andrew1867 1957   
Lindquist, Enoch1888     
Lingo, Walter M.1876     
Linstad, Otto B.1884 1960   
Linster, Paul J.1895 1962   
Lintz, James A. 'Jim'1949   10 - Majority Whip 2007-2008 
Lips, Virgil1920 1995   
Liss, Brian Carl1966     
Lister, Benjamin M.1852 1942   
Littau, Fred M.1916 2002   
Little, William H.1850     
Littlefield, Samuel S.1860     
Litz, Fred1871 1937   
Livermont, Steve1955     
Lloyd, Alma1906 1985  - Appointed February 9, 1960, to fill vacancy of Frank F. Lloyd, husband. 
Lloyd, Frank F.1901 1959 21 - Died in office September 19, 1959. 
Lloyd, James M.1886 1969   
Lloyd, John E.1862 1958   
Locke, Clayton W.1862     
Locken, Magnus1900 1966   
Lockhart, Andrew J.1863   - President Pro tempore 1911-1912 
Lockner, V. Joanne1937     
Lofgren, Merle Eugene1926 2008   
Loge, Kevin M.1955 2000 - Appointed April 12, 1989, to fill vacancy of Debra R. Anderson. 
Lohr, Charles1859     
Loken, Louis, Jr.1930     
Longstaff, John1863 1946 - Died in office June 3, 1946. 
Loomis, A.1851 1926   
Loomis, Louis N.1857     
Lorenson, Olaf1876 1945   
Lorentson, Jacob1846     
Loriks, Carl Emil1895 1985   
Lothrop, Grover1881     
Lothrop, Irving T.1857     
Loucks, Daniel K.1887 1974 - Speaker of the House 1929-1930 
Loucks, William H.1844     
Lovell, Gordon D.1943     
Lovre, Gilbert A.1878     
Lovre, Harold Orrin1904   - U.S. Representative 1949-1956 
Lowe, Charles C.1870     
Lowry, J. W.1854     
Lowthian, Nicholas I.1840     
Lucas, Aaron B.      
Lucas, Larry James1951   18 - Assistant Minority Leader 1997-2000 - LRC Executive Board member 2009-2014 
Ludwig, Adolph1879     
Lumbard, E. B.1875     
Lumbard, Simeon A.1842     
Lund, John H.1859 1934   
Lundberg, Charles J.1885     
Lunden, John A.1874 1962 - Commissioner of School & Public Lands 1943-1949 
Lunder, Lafe A.1912 1993   
Lunder, Paul M.1878 1960   
Lundly, O. J.1873 1949   
Lundquist, John F.1882 1926   
Lust, David1968   11 - Majority Whip 2009-2010 - Majority Leader 2011-2014 - Appointed September 27, 2016, to fill vacancy of Dan Dryden. - Appointed November 18, 2016 to fill vacancy of Dan Dryden after election. 
Lynch, William A.1849     
Lynn, Wm. H., Jr.1885     
Lyon, N. F. 'Red'1915 1990   
Lyon, William Hugh1858 1930 - Died in office September 26, 1930. 
Lyons, Robert 'Bob'1909 1995 - Appointed to the Senate on October 7, 1977, to fill vacancy of Jess Tjeerdsma. 
Mace, Frank1855     
MacFarlane, Dave1900 1970 - Died in office October 21, 1970. 
Madden, Cheryl B.1948   10 - LRC Executive Board member 1997-1998 
Madill, Alexander1843 1927   
Madison, Martin1854     
Madsen, Christopher W.1968   - Speaker Pro tempore 2003-2004 
Magness, Benjamin F.1879 1962   
Magness, James M.1890 1977   
Magstadt, Melissa Jean1969     
Mahaffa, Arlie N.1888 1974   
Mahaffy, George E.1847     
Mahan, Eugene R.1933 1997 12 - Assistant Majority Leader 1975-1976 - Minority Leader 1977-1978 
Maher, John W.1886     
Maher, Ryan1977   12 - LRC Executive Board member 2009-2010, 2011-2014 - Switched party affiliation to Republican in March, 2010, so resigned from Executive Board - Majority Whip 2013-2014 - LRC Executive Board Chair 2013-2014 - Assistant Majority Leader 2017-2018 
Mahl, Charles J.1866 1940   
Maicki, Carol1936 2004   
Major, William S.1851 1935   
Malchow, Herman      
Mallery, John E.1858 1931   
Malm, S. H.      
Manary, Claude1892     
Manke, John D. 'Jack'1917 1985 - Died in office August 12, 1985. 
Mann, Edward M.1853     
Manning, Francis E.1892 1970 - Resigned in December 1963. 
Mannings, John R.1841     
Manson, C. F.1885    - Elected to the Senate in 1947, unable to serve due to illness. 
March, Douglas W.1859 1945   
March, Leonard W.1895     
Marquardt, Lewis R.1936     
Marsden, Kenneth 'K.C.'1942 1997   
Martens, Glenn W.1881 1963   
Martens, Harry H.1896 1982 12 - LRC Executive Board member 1953-1954 - Speaker Pro tempore 1955-1956 
Martin, Andrew1846     
Martin, Andrew1876 1949   
Martin, F. W.1855 1949   
Martin, L. J.1863     
Martin, S. C.1848     
Martin, Samuel H.1852 1938   
Marty, Sam1947     
Marvick, Andrew1871 1950   
Mason, George R.1846     
Masters, Donald J.1906     
Mastick, Horton S.1845     
Mateer, Charles Q. 'Chuck'1922 2008 - Sergeant at Arms 1985-1986 
Matheny, Reed1850 1939   
Mather, Albert D.1851    - Elected to the House in 1905, served 4 days, election contested. 
Mather, Edwin Jones1858 1944   
Mathews, Daniel K.1853     
Mathiesen, Hans1851 1947   
Mathieson, George Donald1847 1916   
Matkins, Olin Marion1917 1984   
Matson, W. H.1846     
Matteson, Allen1854     
Matthew, Floyd L.1935 1990   
Matthews, Daniel J. 'Dan'1954   - LRC Executive Board member 1995-1996 
Mauch, Henry1863     
Maxon, O. P.     - Elected to House in 1891, did not qualify. 
Maxwell, J. R.1871     
Maxwell, John1871 1932   
Maxwell, R. W.1845     
May, Elizabeth1961   - Shannon County name change to Oglala Lakota County eff. May 1, 2015 
May, Ernest1847 1931 14   
May, George E.1909   - LRC Executive Board member 1961-1962 
Mayer, Jerome 'Jerry'1931   - Appointed May 13, 1977, to fill vacancy of Michael O'Connor. 
Maynard, C. J.1835     
Mayo, John Benjamin1877   24   
Maytum, Wellington J.1864 1952   
McAllister, J. B.1871 1954   
McCain, Willie Elwyn Cheever1854 1931   
McCann, William R.1909 2000   
McCart, Elaine L.1928   - Appointed November 19, 1975, to fill vacancy of Marilynn Kelm. 
McCart, John B. 'Jack'1922 1996  - Appointed in April 1974, to fill vacancy of David C. Vigen. 
McCaughey, R. H.1860 1906 - Died in office July 16, 1906. 
McCaulley, Matthew S. 'Matt'1972   - Resigned Seat May 10, 2004 
McCleerey, Steven D.1953   - Assistant Minority Leader 2019-2020 
McClintock, William M.1861 1919   
McClure, Mary A.Bibby1939 2016 15 - LRC Executive Board member 1977-1989 - President Pro tempore 1979-1989 - LRC Executive Board Vice Chairman 1983-1984 - LRC Executive Board Chairman 1985-1986 - Resigned April 10, 1989, to become Special Assistant for Intergovernmental Affairs for President Bush 
McCollum, C. N.1852     
McCollum, James M.1864 1946   
McConnell, Charles A.1860     
McConnell, William1863 1941   
McConville, C. N.1874     
McCormack, Benjamin F.1845 1901   
McCoy, Alice Lucille1948     
McCracken, Royal 'Mac'1941   - LRC Executive Board member 2001-2004 - Majority Whip 2002 - Assistant Majority Leader 2003-2004 
McCullen, J. T.1868 1941   
McCullen, J. T., Jr.1902     
McDaniel, Francis M., Jr.1923     
McDill, Paul P.1885 1962   
McDonald, Charles S.1879   - Speaker of the House 1925-1926 
McDonald, George I.1893     
McDonald, W. M.1874     
McDonnell, William1873     
McDougall, John Edmund1860 1932 - Lieutenant Governor 1905-1907 
McDowell, John R.1913 2001   
McFarland, Dennis C.1942   - Minority Leader 1975-1976 
McFarland, George1866 1941   
McFarland, George B.1898 1982   
McFarland, J. G.1880 1962   
McFarlane, Duncan      
McFarlin, Joseph N.1857 1939   
McFarling, Theodore W.1929     
McGee, Levi1858     
McGinity, I. J.1876     
McGlenn, Edward James1863 1946   
McGrath, Henry1882     
McHugh, Frank J.1890     
McIntyre, Alexander1837     
McIntyre, John R.1931   - Minority Whip 2001-2002 
McKay, Alyce R.1946     
McKeel, William H.1840     
McKeever, Patrick J.1936     
McKellips, Roger D.1923 2017 16 - Assistant Minority Leader 1981-1982 - Minority Leader 1983-1992 - Majority Leader 1993-1994 
McKenna, Frank R.1880 1957   
McKenney, James D.1860 1936   
McKenzie, Frank1911   10 - LRC Executive Board member 1965-1970 
McKillop, Kenneth Murdock1907 1992   
McKillop, Malcolm C.1950   12 - LRC Executive Board member 1985-1990 - LRC Executive Board Chairman 1987-1988 - Majority Whip 1989-1992 
McKinney, J. D.1860     
McKinnon, Thomas1859 1936   
McLaughlin, Edward R.1928     
McLaury, John J.1848 1921   
McLean, Donald1869 1957   
McLeod, John D.1856 1921   
McManus, Patrick Henry, Jr.1858 1934   
McMaster, William Henry1877 1968 - Lieutenant Governor 1917-1921 - Governor 1921-1925 - U.S. Senator 1925-1931 
McMillen, William A.1885     
McMurray, Charles A.1878     
McNamara, James1865     
McNenny, Kenneth G.1935 2017 18 - LRC Executive Board member 1995-2000 - LRC Executive Board Vice Chair 1997-1998 - Majority Whip 1997-2000 - LRC Executive Board Chair 1999-2000 
McNenny, W. F.1876 1963   
McPherson, Donald A.1841 1920   
McPherson, Sean1970 2018   
McQuillan, L. E.1861     
McVay, Glen A.1929 2016   
McVeigh, B. W.1892 1934 10 - Speaker of the House 1931-1932 - Died in office August 4, 1934. 
McWhorter, Arno L.1844 1910   
Means, L. L. 'George'1919 2008   
Medbery, F. W.1867     
Megard, H. I.1880     
Mehlberg, William F.1895 1962   
Mehlhaff, Dean O.1927 2016 10   
Meisenhoelder, Gottlieb1864     
Meland, John1875 1966   
Melby, L. A.1911 1979   
Mellor, Thomas1837     
Melville, Americus B.      
Mendel, D. J.1868     
Menning, C. J.1896 1971 10   
Mensch, Lyle D.1942     
Menzel, Henry1859 1946   
Merchant, Pamela K.1967     
Merry, George S.1863 1935   
Merry, George W.1839 1915   
Merry, William E.1861    - Elected to the House in 1927, unable to serve due to illness. 
Mertens, John J.1869     
Messing, Dwight1891 1963   
Messner, Frank L.1883 1958 10   
Mettler, John H.1858 1921   
Metz, Henry W.1876 1956 12   
Meyers, Gregory F.1881     
Meyers, William1926 2016   
Michael, L. F.1866     
Michaels, John H.1843 1909   
Michels, Matthew J.W.    - Speaker Pro tempore 2001-2002 - Speaker of the House 2003-2006 - LRC Executive Board member 2003-2006 - Lt. Governor 2011-1014 
Mickel, Charles J.1938 2014   
Mickelson, G. Mark1966   - Speaker Pro Tempore 2015-2016 - Speaker of the House 2017-2018 - LRC Executive Board member 2017-2018 - LRC Executive Board Chair, 2017 - LRC Executive Board Vice Chair, 2018 
Mickelson, George S.1941 1993 - Speaker Pro tempore 1977-1978 - Speaker of the House 1979-1980 - LRC Executive Board member 1979-1980 - Governor 1987-1993, died in plane crash. 
Mickelson, George T.1903 1965 - Speaker of the House 1941-1942 - Attorney General 1943-1947 - Governor 1947-1951 
Mickelson, Gordon1948   - LRC Executive Board member 1987-1990 
Mickelson, Grace1926   - Appointed August 25, 1972, to fill vacancy of Franklin Wallahan. - LRC Executive Board member 1975-1976 
Mickelson, Louis1858     
Miler, Carl1897     
Miles, A. F.1862 1945   
Miles, Kathy M.1950   - Minority Whip 2005-2006 - LRC Executive Board member 2009-2010 
Miles, Ray E.1902 1992   
Miller, A. C.1898 1979 - Speaker of the House 1937-1940 - Lieutenant Governor 1941-1945 
Miller, Alexander1846 1922   
Miller, Arthur1861     
Miller, E. C.1846     
Miller, Edgar James1864     
Miller, George W.1852     
Miller, James W.1927 1989   
Miller, Joseph C.1847 1905   
Miller, Lauritz1877     
Miller, Leroy D.1869     
Miller, Linda Lea M.1945     
Miller, Patricia (Patty) Susan1953   - Resigned March 27, 2013 
Miller, Robert L. 'Bob'1937 2017   
Miller, Ronald K.1943   - LRC Executive Board member 1979-1980 - Resigned August 12, 1980, to become State's Attorney in Brule County. 
Miller, S. B.      
Miller, Tarrel R. 'Terry'1945     
Miller, Walter Dale1925 2015 20 - Assistant Majority Leader 1972 - Majority Leader 1975-1978 and 1986 - Speaker Pro tempore 1979-1980 - Speaker of the House 1981-1982 - LRC Executive Board member 1981-1982 - Majority Whip 1983-1985 - Lieutenant Governor 1987-1993 - Became Governor April 20, 1993, due to death of George S. Mickelson. 
Millett, Charles Lincoln1865 1922   
Millett, Harold1918 1981 14 - LRC Executive Board member 1973-1978 - LRC Executive Board Chairman 1975-1976 
Milliken, James R.1853     
Milliken, Roy R.1894     
Milliman, F. J.1884     
Mills, George Wininger1889 1971 22 - Speaker of the House 1947-1948 - Elected in 1962, resigned February 8, 1963. 
Mills, John1954   - LRC Executive Board member 2019-2020 
Mills, Lewis W.1878 1945   
Mills, Thomas P.1921 1992   
Milne, J. C.1869 1939   
Milstead, Ralph V.1895     
Milstead, Rhonda1957   - Appointed January 5, 2019, to fill vacancy of Deb Peters. 
Miltimore, Clarion I.1841   - Territorial Legislature 1887 
Minahan, James B.1881 1956   
Miner, Doris P.1936   16 - LRC Executive Board member 1979-1984 - Assistant Minority Leader 1987-1990 
Miner, William Vance1873 1929   
Miskimins, Paul R.1952     
Mitchell, Arthur S.1892 1968 10   
Mitchell, John H.1846     
Moe, Ole1874 1943   
Mohn, Carl J.1876     
Mondry, Frank J.1882 1963   
Monroe, C. D.1887     
Monroe, Jeff1956   16   
Monson, M. H.1887     
Montgomery, Henry1858 1917   
Montgomery, W. L.1872     
Moodie, Alex Arthur1860 1945 16   
Moodie, Mabel      
Moody, James C.1863     
Moore, A. M.1858 1931   
Moore, Archie R.1917     
Moore, Fred C.1859 1931   
Moore, Garry A.1949   18 - Minority Whip 1993-1996 - Assistant Minority Leader 2001-2002 - Minority Leader 2003-2006 
Moore, George A.1878 1955   
Moore, Isaac1836   - Territorial Legislature 1881 
Moore, James H.1911   - Appointed May 18, 1961, to fill vacancy of Delos C. Smith. 
Moore, Orin D.1817     
Moore, Roger R.1922     
Moran, Mike1882     
Morford, E. E.1870     
Morford, JoAnn1956   - Majority Whip 1994 - Minority Whip 1995-1996 - Served as JoAnn Morford-Burg 1991-1997 
Morgan, B. F.1858     
Morgan, David C.1843     
Morgan, Edwin1835 1916   
Morgan, Frank1869 1943 - Won contested seat in 1913, after the 11th legislative day. 
Morgan, K. J.1900     
Morrell, Warren1915 1979   
Morrill, Earl V.1899 1974   
Morris, Charles J.1871   - Speaker of the House 1911-1912 
Morris, John E.      
Morris, William A.1864 1956   
Morrison, E. A.1852 1951   
Morrison, Elma C.1865 1951   
Morrison, J. D.1888     
Morrissey, John1869     
Mortimer, George Freeman1909 1999 20 - LRC Executive Board member 1969-1972 and 1985-1986 
Mortimer, Harold1930    - Appointed to the Senate June 16, 1976, to fill vacancy of Robert W. Kelly. 
Mortimer, Samuel G.1879 1959   
Moscrip, Edward1838 1927   
Moser, Nicholas G.1983   - Majority Whip 2011-2012 
Moseson, Moses1855     
Mosher, Harry E.1878     
Motley, George W.  1899   
Motley, Henry H.1875 1952 10   
Moulton, Edrick C.1850     
Moyes, William Wallace1874 1930 - Died in office in 1930. 
Muchow, William Carl1884 1973   
Mueller, Earl A.1890     
Mueller, John E., Jr.1892   14 - Appointed to the House, December 23, 1965, to fill vacancy of Charles E. (Pete) White. 
Muenster, Karen K.1942   - LRC Executive Board member 1987-1992 - Minority Whip 1989-1992 
Muggli, J. M.1869     
Muhlbeier, Jacob1857 1926   
Mulally, Tina L.1957     
Mullen, Guilford1838     
Mumford, Earl Milham1889     
Munck, Arthur E.1892 1961 10 - Speaker Pro tempore 1947-1948 - Speaker of the House 1949-1950 - LRC Executive Board Secretary 1953-1954 
Mundt, Harry E.1898 1977   
Mundt, Henry Carl1886     
Mundt, John Henry1853     
Munson, David R.1942   24 - Majority Whip 1983-1984 and 1989-1990 - Resigned May 17, 2002 
Munson, Donald E.1936     
Munson, Franklin A.1838     
Munson, Louis A.1876     
Munsterman, Scott Donald1961   - Majority Whip 2013-2014 
Murdy, Andrew C.      
Murphy, John F.1930 2003 - LRC Executive Board member 1965-1966 and 1969-1970 
Murphy, Ray J.1883 1918   
Murray, E. C. 'Ping'1905 2002 10   
Murschel, Catherine 'Casey'1951     
Mussman, Henry C.1853     
Mydland, Gordon J.1922   - Attorney General 1969-1973 
Myers, B. F.1880     
Myers, C. B.1872     
Myers, Mark1878     
Myers, Wallace G.1935 2014  - Appointed to House, September 24, 1976, to fill vacancy of Kenneth D. Stofferahn. 
Myhren, W. P. 'Wally'1915 1962 - LRC Executive Board member 1957-1958 - Died in office September 24, 1962. 
Myron, Hans1849   - Territorial Legislature 1877 and 1885 
Nachtigal, Ralph1933 2014   
Nachtigal, Sam G.1962   - Minority Whip 2001-2002 
Naddy, Donald1917   - LRC Executive Board member 1965-1966 
Napoli, William M. 'Bill'1948   14 - Assistant Majority Leader 2001-2002 
Nash, Frank1889 1969   
Nauman, Ralph A.1915 2007 - LRC Executive Board member 1959-1962 
Nedved, Emil B.1884 1955   
Neer, James R.      
Negaard, Olaf1864 1936   
Negstad, Richard B.1934 1997 - Majority Whip 1995-1996 - Elected in 1996, died January 11, 1997. 
Neill, C. A.1859     
Nelson, A. G.1866 1944   
Nelson, Adolph1892 1965   
Nelson, Alfred1876     
Nelson, Clarence C.1879     
Nelson, Erick S.      
Nelson, Gary D.1935     
Nelson, George S.1859     
Nelson, H. Ivan1906     
Nelson, Harry W.1900 1967   
Nelson, Iver1859 1940   
Nelson, James S.1934     
Nelson, Karelius1868     
Nelson, Larry A.1952   - LRC Executive Board member 1987-1990 - Assistant Minority Leader 1989-1990 
Nelson, Luther1880 1969   
Nelson, Melvin A.1897     
Nelson, Merlin E.1907 1967 - LRC Executive Board member 1959-1960 
Nelson, Milton E.1948     
Nelson, N. M.1870 1930   
Nelson, Nels A.1863     
Nelson, Nick1862     
Nelson, Pamela A.1946   10 - Minority Whip 1991-1992 - Majority Whip 1993-1994 - Assistant Minority Leader 1995-1996 - Public Utilities Commissioner 1997- 
Nelson, Paul O.1946     
Nelson, Roy B.1883     
Nelson, Soren C.1851 1926   
Nelson, Stace1967     
Nelson, Thomas R.1957   - LRC Executive Board member 2011-2012 
Nelson, Vance N.1899     
Nemec, Nicholas E.1958     
Nepstad, Axel Arthur1902 1968 - Resigned December 28, 1967. 
Nepstad, Dorothy1903 1997 10   
Nesiba, Reynold F.1966   - Minority Whip 
Nesselhuf, Benjamin 'BJ'1975   10   
Netherton, Jenna J.1985   - Elected as Jenna Haggar 2011-2016 - Resigned April 9, 2018 
Neubauer, Merton E.1870 1946 - Died in office August 15, 1946. 
Nevin, William A.1876 1948 10   
Newby, Isom H.1853 1929   
Newby, John T.1854     
Newell, John I.1873 1911   
Newell, W. J.1872     
Newland, James E.1830 1907   
Newton, Daniel T.1851 1942   
Newton, Jasper1855     
Nichol, Fred Joseph1912   - LRC Executive Board member 1951 
Nickisch, Nathaniel1896 1976   
Nicolay, Janice K.1942   14   
Nielson, L. P.1868     
Nilson, Gustaf1834     
Nisbet, James William1905     
Nisbet, William Cornwall1863 1945   
Nixon, Zachary T.1849 1916   
Noble, Harvard N.1907     
Noem, Kristi1971   - LRC Executive Board member 2007-2008 - Assistant Majority Leader 2009-2010 - U. S. Congresswoman 2011-2018 - Governor 2019-2022 
Noonan, J. C.1908     
Norbeck, Enoch1880 1946   
Norbeck, George1836 1917 - Territorial Legislature 1872 
Norbeck, Peter1870 1936 - Lieutenant Governor 1915-1916 - Governor 1917-1921 - First native son of South Dakota to become Governor. - U.S. Senator 1921-1936, died in that office. 
Norby, Albert1881     
Nordness, Reinhart L.1888 1960 - Died in office January 27, 1960. 
Nordstrom, C. M.1886 1967   
Nordstrom, Walter Vincent1914 1967 13 - Died in office May 29, 1967. 
Norelius, John E.1857 1923   
Norgren, Gustavus1850     
Norin, John1854     
North, James A.1849     
Northrup, Edgar Burr1867 1926   
Norton, John1839 1916   
Norton, John Francis1843 1916   
Norvold, A. H.1869 1952   
Noteboom, Ernest H.1885     
Novotny, Frank1903 1995 10 - LRC Executive Board member 1971-1972 
Novstrup, Allan (Al) Ray1954   18 - Majority Whip 2017-2020 
Novstrup, David A.1983   10   
Noyes, C. J.1875 1953   
Nygaard, Eldon Eugene1946   - Minority Whip 2009-2010 
Nygaard, O. S.1887     
Nyquist, Adrian1867 1926 10 - Died in office July 8, 1926. 
O'Brien, B. F.1847 1939   
O'Brien, J. P.1892     
O'Brien, Sean M.1953   - Appointed August 13, 2002, to fill vacancy of Carol A. Pitts. - Majority Whip 2005-2006 
O'Brien, W. J.      
O'Brien, William S.1846 1914   
O'Connor, Michael1946   - Resigned April 30, 1993; President Clinton appointment; State Executive Director of the ASCS. 
O'Connor, Michael J.1928 2018 - President Pro tempore 1975-1976 - LRC Executive Board member 1975-1976 - Assistant Minority Leader 1977 - Resigned in April 1977. 
O'Connor, Mike W.1900     
O'Neill, William1825 1919   
Oakes, Henry A.1838     
Odegaard, N. J.1864 1948   
Odegaard, Olaf T.1863 1937   
Odell, Archie Willis1886   - President Pro tempore 1939-1940 
Odell, Robert James1854 1918 - Died in office January 10, 1918. 
Oden, Robert A.1917     
Odland, Eric H.1856   12   
Odland, L. J.1868     
Odland, Ole1862     
Ohlman, M. P.1876 1957   
Ohman, Fred C.1879     
Oien, Halvor1870 1940   
Oien, Hemming O.1926 2010 10   
Olds, Frank M.1888 1969   
Oleson, Andrew H.1861 1933   
Oleson, Ole, Jr.1860 1914   
Oliver, Benjamin N.1840 1915   
Olsen, Andrew1841     
Olsen, Chris1858     
Olsen, Martin V.1876   18   
Olson, Alex1896 1977 14 - LRC Executive Board member 1951-1954 
Olson, Alfred1884   18   
Olson, B. A.1885 1959   
Olson, B. O.1873     
Olson, Betty1946   10 - LRC Executive Board member 2013-2014 
Olson, Christine1892     
Olson, Edwin W., Jr.1947   16 - LRC Executive Board member 1989-1994 and 2003-2006 - LRC Executive Board Vice Chair 1993-1994 and 2003-2004 - Majority Whip 1993-1994 - LRC Executive Board Chair 2005-2006 
Olson, George C.1867     
Olson, George K.1902 1952 - Died in office July 23, 1952. 
Olson, Jess1985     
Olson, Judith R.1939     
Olson, Lewis1864     
Olson, Maurice A.1926 2004 16 - LRC Executive Board member 1973-1976 
Olson, Maylin K. 'Mel'1959   12 - Assistant Minority Leader 1999-2000 - Minority Leader 2001-2004 
Olson, O. H.1855 1925   
Olson, O. R.1864     
Olson, Ole T.1878 1949 - Territorial Legislature 1885 
Olson, Ole, Jr.1860     
Olson, Raymond A.1900     
Olson, Rudolph1887     
Olson, Russell Donovan1970   - Majority Leader 2011-2013 - Resigned September 30, 2013 
Olson, Ryan P.1976     
Olstad, C. E.1879     
Omdahl, David M.1956   - LRC Executive Board member 2015-2016 
Omdahl, Samuel A.1862     
Opdahl, Milo S.1912     
Opsahl, Paul W.1896 1986   
Opsal, Bert L.1885     
Orcutt, Joseph W.      
Orr, Robert D.1921   - LRC Executive Board member 1965-1966 
Ortman, Herbert W.1916     
Ortner, Michael P.1942    - Appointed December 18, 1985, to fill vacancy of James W. Emery. 
Orton, J. J.1875     
Osheim, Donald E.1919 2003 - Speaker Pro tempore 1969-1970 - Speaker of the House 1971-1972 - LRC Executive Board member 1971-1972 
Oster, Henry J.1894   20 - President Pro tempore 1959-1960 - LRC Executive Board member 1959-1961 
Oster, Tony W.1925 1994   
Osterberg, J. E.1874 1942   
Ostrander, Orvie J.1905     
Ott, Clarence W.1885     
Otte, George B.1875 1941 10   
Otten, Ernie1954   - Majority Whip 2015-2016 
Otten, Herman Dean1966     
Otternes, Ole J.1856 1952   
Otto, C. H.1858 1928   
Overholser, Eugene1870 1945 10   
Overholser, Royce L.1882     
Overpeck, Lem1911 2003 - Lieutenant Governor 1965-1969 
Overseth, Peder Anthon1853 1929   
Oviatt, Frank1852 1930   
Oviatt, Thaddeus Walter1893 1948 10 - Speaker Pro tempore 1945-1946 - Died in office September 19, 1948. 
Owen, Elmer E.1890     
Oxner, Ed  1976   
Packard, Harlan P.1845 1923   
Paddock, Orrin1876     
Painter, James B.1877   14   
Paisley, Keith W.1928 2011 20   
Palmer, Cornelius Solomon1844 1932 - Vermont Legislature 1880 - Territorial Justice 1883-1888 
Palmer, Foster Clark1859 1944   
Papik, Joseph      
Parker, Edson O.  1913   
Parker, Francis J.1885     
Parker, William Henry1847 1908 - U.S. Representative 1907-1908, died in that office. 
Parkinson, O. E.1876     
Parks, John F.1860 1917   
Parks, Ross E.1858 1923   
Parliman, Ralph Winfield, Jr.1889 1946   
Parliman, Ralph Winfield, Sr.1861     
Parmley, Harry Truman1860 1935   
Parmley, Joseph W.1861 1940   
Parrott, Jacob L.1876     
Parsley, Scott Leo1952   - Minotiry Whip (House) 2013-2014 - Minority Whip (Senate) 2015-2016 - LRC Executive Board member 2015-2016 
Parsons, Charles S.1854     
Parsons, H. W.1868 1944   
Parsons, J. W.1874     
Partridge, James1869 1952   
Partridge, Jeff1970   - LRC Executive Board member 2017-2018 
Pashby, Fawn1903 1979   
Paterson, David1856     
Patrick, George H.1871 1932   
Patridge, Albert L.1846   - Territorial Legislature 1889 
Patriquin, Amos1865     
Patten, Albert      
Patterson, Charles A.1871   - Served in North Dakota Senate. 
Patterson, Ernest O.1874     
Patterson, F. S.      
Patterson, Frederick B.1864     
Patterson, Mary Alice1927     
Patterson, Richard1824     
Patton, Charles J.1859     
Patton, John D.1842 1914 - Territorial Legislature 1887-1889 
Paulson, Herman1916 1996 12   
Paulson, N. W.      
Paulson, Paul S.1882 1955   
Payne, Jason Elihu1874 1941   
Peacock, Frank E.1858 1931   
Pearson, A. W.1880     
Pearson, John E.1868 1954   
Pearson, S. Robert1909 1985 - LRC Executive Board member 1953-1956 
Pease, Henry Roberts1835 1907 - U.S. Senator, from Mississippi, to fill vacancy of Adelbert Ames 1874-1875. 
Pease, Richard M.1910 1972 - LRC Executive Board member 1951-1952 
Pease, Solomon W.1852     
Peckham, Frank D.1877     
Peckham, John Wallace1873     
Pederson, Elvin E.1919     
Pederson, Gordon R.1927 2011 30 - LRC Executive Board member 1989-1994, 1997-1998, 2001-2002 and 2005-2008 - LRC Executive Board Vice Chair 2005-2006 
Pederson, Peder M.1859     
Peirce, Ellis T.1846 1926   
Peitz, John, Sr.1855     
Pennington, Fred      
Perkins, Daniel Reese1871     
Perkins, Henry E.1864     
Perkins, John B.1884     
Perley, George Amasa1849     
Perrigo, Kathleen Ann Murphy1941     
Perrin, Charles C.      
Perry, Carl E.1953     
Perry, James Henry1866 1922 - Died in office November 30, 1922. 
Perry, Robert Thomas (Tad)1943     
Perry, Van Buren1892     
Pesicka, Vincent J.1895 1960   
Peterman, Albert L.1852 1920   
Peters, Ben1871     
Peters, Deb1974   14 - LRC Executive Board member 2013-2014 
Petersen, Lyndell Hans1931   18 - LRC Executive Board member 1983-1988 and 1991-1994 - LRC Executive Board Chairman 1993-1994 
Peterson, Andrew1858     
Peterson, C. O.1892   10 - LRC Executive Board member 1955-1956 
Peterson, Carl J.1851 1951   
Peterson, Dale Robert1925     
Peterson, Donald C.1930 2004 10   
Peterson, Greg A.1945 2014   
Peterson, J. M.1872     
Peterson, James (Jim) Russell1943   14 - LRC Executive Board member 2005-2006 - Minority Whip 2007-2010, 2013-2016 
Peterson, John1850 1917   
Peterson, John H.1874     
Peterson, Kent S.1980   - Assistant Majority Leader 2017-2018 
Peterson, Mancel W.1890   18 - President Pro tempore 1935-1936 
Peterson, Monse B.1859     
Peterson, Otto P.1889 1983   
Peterson, P. F.1872 1940   
Peterson, P. J.1862     
Peterson, P. W.1860     
Peterson, Peter P.1854     
Peterson, Robert D.1888   - Lieutenant Governor 1935-1937 
Peterson, Sue1963   - LRC Executive Board member 2019-2020 
Peterson, Wayne1929 2007   
Peterson, William G. 'Bill'1950   - Majority Whip 1999-2000 - Majority Leader 2001-2004 
Pfaff, Jacob, Jr.1854 1937   
Pfeifer, William      
Philip, James 'Scotty'1858 1911   
Pieplow, E. C.1917 2002 12 - LRC Executive Board member 1971-1976 - LRC Executive Board Vice Chairman 1971-1972 and 1975-1976 - Minority Leader 1973-1974 - Appointed November 28, 1983, to fill vacancy of Robert K. Williams. 
Pierce, W. T.1836     
Piersol, Larry1940   - Majority Leader 1973-1974 
Pierson, Dennis R.1945   - LRC Executive Board member 1981-1982 
Pietz, Herman G.1906 1984 12   
Pilcher, Patricia Ann1945 1993   
Piner, Henry1868     
Pinkerton, W. W.1842     
Pischke, Tom1982     
Pitts, Carol A.1950   - Resigned July 31, 2002. - LRC Executive Board member 2007-2008 
Plate, H. A.1886     
Plowman, Mark1859     
Poelstra, William A.1895   10   
Polley, Cleland A.1904 1989 12   
Pommer, Merle C.1910 1993 20 - LRC Executive Board member 1971-1972 
Poppen, Henry A.1922 2005 26   
Porch, Roger A.1951   12 - LRC Executive Board member 1993-1996 - Majority Whip 1995-1996 
Porter, Andrew J.1856     
Porter, Clement F.1861 1933   
Porter, Donald J.1921 2003 - Supreme Court Justice 1977-1979 
Post, Doug1972     
Potter, Charles E.1872 1954   
Potter, John T.1847     
Potter, Steven LaFranc1858 1932   
Pottratz, Louis A.1892 1965   
Pourier, Peri1983     
Powell, David M.1836   - Territorial Legislature 1889 
Power, Joseph1852     
Powers, A. A.1848 1918   
Prather, Willis A.1862     
Pratt, Tracey W.      
Prchal, Edward1894 1979   
Pred, Abraham1895 1986   
Preston, Charles      
Preston, Harrison C.1832     
Price, Titus E.1865     
Price, W. P.1846 1911   
Priest, James Monroe1853 1903   
Printup, David L.1857     
Proctor, John S.      
Puckett, B. F.1865     
Puder, George H.1889     
Pulford, David1886   30   
Pummel, George W. 'Willard'1926     
Purdin, John I.1852     
Pusey, John1860 1937   
Putnam, James E. 'Jim'1940   26 - Appointed October 2, 1987, to fill vacancy of Gary Bender. - Majority Whip 1993-1996 - LRC Executive Board member 2005-2010 
Putnam, Willis E.      
Pyle, Gladys1890 1989 - 1st Woman to be elected to the Legislature. - Secretary of State 1927-1931 - U.S. Senator 1938-1939 - First woman to represent South Dakota in the U.S. Congress. 
Quail, O. A.1895 1963   
Quale, Theo1877     
Quale, William T.1894 1983   
Qualm, Lee D.1954   - Majority Leader 2017-2020 - LRC Executive Board member 2017-2020 
Quam, C. B.      
Quammen, Ole S.1871 1934 - Died in office April 30, 1934. 
Quickstad, N. E.1865     
Quinn, Henry T.1893 1978 - Appointed August 1, 1967, to fill vacancy of Walter V. Nordstrom. 
Quinn, John W.1874     
Quintal, A. A. 'Joe'1899 1985   
Raben, Dayton Henry1876     
Radack, Jerome D.1942   - LRC Executive Board member 1973-1978 
Radcliffe, Ben H.1915 2014 - LRC Executive Board member 1959-1960 
Rader, W. M.1888     
Ramey, James1917 2015 10 - LRC Executive Board member 1957-1958 and 1961-1964 - President Pro tempore 1963-1964 - LRC Executive Board Vice Chairman 1963-1964 
Rampelberg, Bruce Emerson1942     
Ramsdell, Henry A.1843     
Randolph, Tony1966     
Raney, Robert F.1883 1957   
Ranney, Thomas P.1937 2000   
Ranum, Lewis1864     
Rasmussen, Adolph E.1882 1966   
Rasmussen, J. M.1875     
Rasmussen, Nancy1953     
Rasmussen, Roberta A.1939     
Ratte, H. F.1864     
Rausch, Val1960   - Speaker Pro Tempore 2009-2010 - Speaker of the House 2011-1012 - LRC Executive Board member 2011-2012 
Rave, Alfred J.1906     
Rave, Timothy Allan1967   13 - Majority Whip 2005-2006 - Speaker Pro Tempore 2007-2008 - Speaker of the House 2009-2010 - LRC Executive Board member 2009-2010, 2015-2016 - Majority Whip 2011-2012 - Assistant Majority Leader 2013 - Majority Leader 2013-2015 - Resigned March 31, 2015 
Ravndal, Gabriel Bie1865 1950   
Rayburn, Robert 'Verne'1891 1948   
Raymond, Charles F.1856     
Read, Edward J.1850     
Rearick, David1863 1941   
Rebrud, Charles H.1856 1940   
Redding, Martin V.1843     
Redlin, Robert F.1915     
Reece, Ezekiel      
Reed, Charles S.1880 1947 11 - President Pro tempore 1945-1946 - Died in office February 9, 1947. 
Reed, George P.1874     
Reed, Thomas1839     
Reed, Tim1965   - LRC Executive Board member 2017-2018 
Reedy, John J.1927   14   
Reedy, Thomas E.1868     
Rees, John J.1839     
Reeves, Charles E.1861     
Reeves, Jay Edward1886   - State Auditor 1899-1903 
Regan, John E.1857     
Reid, James1853     
Reid, Roger1934     
Reidt, D. W.     - Elected to the House in 1951, did not qualify. 
Reilly, J. E.1891     
Reimer, Rebecca1964   - Appointed 8/8/2018 to fill vacancy of Jim Schaefer. 
Reinecke, Fred A.1883 1937   
Rempfer, Christian1859 1945   
Renner, Leonard1840 1916   
Renning, Andrew1877 1939   
Renning, George A.1915   12   
Rentschler, Jack Gilbert1931     
Revier, Lloyd E.1910     
Rexford, Manson1849     
Rezac, Jos. J.1878     
Rhian, Alvin J. 'Hap'1907 1979   
Rhoden, Larry R.1959   16 - Assistant Majority Leader 2003-2004 - Majority Leader 2005-2008 - Majority Whip 2009-2010 - Majority Whip 2013-2014 - Majority Whip 2017-2018 - Lt. Governor 2019-2022 
Ribstein, F. F.      
Rice, George1854 1952 - Territorial Legislature 1883-1885 - Speaker of the House 1885 - Attorney General 1885-1886 - Public Utilities Commissioner 1907-1913 
Rice, Martin L.1850     
Rice, William G.1858 1948   
Richards, Louis1836     
Richards, Reed C.1944     
Richardson, D. J.1895 1974   
Richter, Mitchell W. 'Mitch'1960   - Elected to Senate 2003, never served. 
Rickenbach, Joel1918 2003 10 - LRC Executive Board member 1983-1984 
Ricords, S. W.1878     
Riddle, Lloyd M.1896 1969   
Riedlinger, John, Jr.1908     
Riedy, John R.1911 2001   
Ries, Thomas G. 'Torchy'1922 2003   
Rinehart, Orville V.1862 1941   
Ring, Raymond J., Jr.1945     
Ringer, J. B.1868     
Ripp, William R.1924 1995 14 - Appointed December 11, 1969, to fill vacancy of Robert W. Hirsch. - LRC Executive Board member 1979-1982 
Risch, Gus1895 1994   
Rishoi, J. M.1889 1979   
Rishoi, Nels1863 1934 - Died in office January 14, 1934. 
Ristow, Harold C.1917     
Risty, Albert R.1892 1983 28 - President Pro tempore 1949-1950 - LRC Executive Board member 1951-1954 and 1967-1968 - LRC Executive Board Secretary 1951-1952 
Risty, Austin Gullickson1855 1934   
Robbennolt, Gene M.1936 1999 12 - LRC Executive Board member 1979-1984 
Robbie, Joseph, Jr.1916 1990   
Robbins, Joseph L.1877 1971   
Roberts, A. C.1853 1926 14 - Speaker of the House 1917-1918 
Roberts, Clint1935 2017 - Assistant Minority Leader 1975-1976 - President Pro tempore 1977-1978 - LRC Executive Board member 1977-1978 - U.S. Representative 1981-1983 
Roberts, Elaine A.1940   - LRC Executive Board member 2006 
Roberts, F. B. 'Bob'1903   - Appointed January 7, 1957, to fill vacancy of L. A. Johnson. 
Roberts, Frank M.1886     
Roberts, Kenneth L.1907     
Robertson, Charles W.1875     
Robertson, David1855     
Robertson, Henry1859 1923   
Robertson, J. E.1881 1944   
Robins, C. B.1879 1955   
Robinson, H. S.1890     
Robinson, Hugh M.1902 1978   
Roby, Thomas E.1924 2015   
Roe, Benjamin Ogden1848 1902   
Roe, Robert A.1954 2016 12 - Appointed November 28, 1989, to fill vacancy of Dean M. Krogman. - Majority Whip 1995-1998 
Roesler, Alfred D.1892 1973 30 - LRC Executive Board member 1951-1966 - President Pro tempore 1953-1954 - LRC Executive Board Chairman 1957-1958 
Rogde, Peter J.1864 1914   
Rogen, Mark E.1956     
Rogers, Jack K.1926 2001 - Appointed November 19, 1963, to fill vacancy of T. A. Rogers, his father. 
Rogers, T. A. 'Archie'1900 1963 - Died in office in 1963. 
Rogness, H. W.1874 1934   
Rohweder, William1836 1913   
Roller, Edwin G.1879     
Romkema, Fred W.1947   - LRC Executive Board member 2015-2016 
Rommeriam, Andrew J.1851 1926   
Rood, Frank M.1856 1945 - Secretary of State 1915-1919 
Root, W. E.1873 1946   
Roselle, Joseph F.1867     
Roseth, Julius1882 1955   
Roskie, George W.1874     
Ross, Fred1863 1931 - Died in office September 6, 1931. 
Ross, James1830 1915   
Rossow, Alfred C.1895 1984 10   
Rossow, John1861 1948   
Rost, Judy Flynn1939   - Elected in 1998, resigned January 4, 1999. 
Rothstein, James L.1914 1995 10 - LRC Executive Board member 1967-1970 - Majority Leader 1969-1972 
Rounds, J. C.1862     
Rounds, M. Michael1954   10 - Minority Whip 1993-1994 - Majority Leader 1995-2000 - Governor 2003-2010 - U.S. Senator 2015- 
Rounds, Timothy (Tim) Gregory1959   16   
Rouse, J. W.1832 1915  - Elected to the House in 1891, did not qualify. 
Rowe, Clark S.1850     
Rowe, Fred S.1860 1929   
Rowe, John1880     
Rowen, A. A.1855 1936 - Senate E & E Chief 1901-1907 
Rowley, Alfred B.1855     
Royhl, Adam1857     
Rozell, B. A.1862     
Rozum, Tona L.1945     
Rubertus, Frank Joseph1868     
Ruckman, John L.1868     
Rudd, John1839     
Ruden, Egeberg A.1883 1965   
Ruden, Gilbert I.1885 1926   
Rudine, Axel C.1878 1955   
Rudolph, Martin E.1853 1903  - Died in office March 28, 1903. 
Rueb, Rayburn R.1919 1985 - Appointed September 24, 1963, to fill vacancy of Wilbur Foss. 
Ruhlman, B. F.1860     
Ruhlman, F. W.1869     
Rundell, Arch E.      
Rusch, Arthur L.1946     
Russell, C. A.1869     
Russell, John Charles1865 1941   
Russell, John Henry1853     
Russell, Lance S.1969   12   
Russell, William D.1854 1911   
Ruswick, Ole1852     
Ruth, Robert F.1921 2018 - Appointed January 15, 1969, to fill vacancy of D. O. Dillavou. 
Ryan, Emmet C.1867     
Ryan, Francis William1862 1917   
Ryan, George W.1851 1938 - Territorial Legislature 1889 
Ryan, John P.1840     
Ryan, Michael C.1860     
Saba, Michael P.1941     
Sage, Dudley David1854     
Sage, E. Clarence1847     
Sahr, William K.1924 1995   
Saltmarsh, Frank E.1862 1947   
Salzsiedler, Chris1864     
Sampson, Nicholas1844 1927   
Sampson, Wilfred F.1915     
Samuelson, Martin1891 1971   
Samuelson, Robert Lloyd1925 2004 - Assistant Minority Leader 1983-1984 
Sanborn, Charles E.1870     
Sanders, D. F.1844     
Sanders, Jessie E.1893 1985 - 1st Woman elected to the South Dakota Senate. 
Sandness, William J.1948     
Sandys, Lew W.1879     
Sanger, John Tilford1896     
Sargent, Jean F.1879     
Sasse, Henry A.1872     
Sateren, M. L.1862     
Sather, Arthur G.1911     
Sather, O. K.1872 1947   
Satre, Samuel M.1865 1939   
Saugstad, Andrew O.1858     
Saukerson, Eleanor G.1922 2005   
Sayer, F. Emmett1888     
Scanlan, M. J.1858 1944   
Scarbrough, Alva W.1929 1991 - LRC Executive Board member 1983-1984 
Scattergood, John Whitfield1843 1893   
Schaber, Robert Otto1872 1948   
Schaefer, James1938 2018   
Schafer, Donna J.1936     
Schaffer, William1856     
Schamber, Fred W.1860     
Schamber, John1856 1923 - State Treasurer 1899-1903 
Schamber, Julius1866     
Schapler, Fred1922     
Scharf, Albert1833     
Scharffenberg, Carl1886 1960   
Schaunaman, Craig D.1959   10 - Minority Whip 1991-1992 - Assistant Minority Leader 1993-1994 - Minority Leader 1995-1996 
Schemmer, Jake F.1895 1972   
Schenk, William1896     
Scherer, Gus L.1897 1963   
Schiltz, Jacob1869 1954   
Schirber, F. W.1885     
Schleher, A. F.1886 1948   
Schlekeway, Todd J.1977     
Schlueter, John H.1912 1962   
Schlund, George A.      
Schlunsen, George1874     
Schmidt, Dennis R.1945     
Schmidt, Freddie A.1918 1988 - Appointed November 4, 1969, to fill vacancy of Charles Droz. 
Schmidt, Martin Edward1908 1988   
Schnaidt, Jacob, Sr.1847 1907 - Territorial Legislature 1887 
Schnauber, Fred1839 1919   
Schneider, Edward1879   10   
Schneider, Joe J.1920     
Schneiderheinz, John1873     
Schnider, Jesse L.1917 1994   
Schoenbeck, Lee1958   10 - Majority Whip 2003-2004 - LRC Executive Board member 2005-2006 - President Pro Tempore 2005-2006 
Schoenfish, Kyle1987     
Scholfield, Isaacher1833 1914   
Schrader, John F.1855 1934   
Schrag, Jos. K.1870     
Schrag, Lloyd1915 1996 14 - President Pro tempore 1967-1968 - LRC Executive Board member 1967-1970 - Majority Leader 1970-1972 
Schramm, Albert1915 2000   
Schreiber, Lola F.1933   10 - Appointed November 20, 1987, to fill vacancy of Bernard Christensen. - LRC Executive Board member 1993-1996 - LRC Executive Board Chair 1995-1996 
Schreier, Harold D.1929 1987 10 - LRC Executive Board member 1977-1978 
Schrempp, Darrel (Dean)1935   12 - Minority Whip 2015-2016 
Schroder, Frank R.1866 1945   
Schroeder, William1913 2005   
Schultz, F. W.1879     
Schultz, Jeppe1884     
Schultz, John W.1835     
Schultz, Peter H.1869 1950 12   
Schulz, Alvin F.1899 1982   
Schulz, C. F.1869     
Schumacher, Robert J.1929 2016   
Schumaker, R. E.1893     
Schwader, Ferdinand1907 1992 12   
Schwandt, Fred G.1894     
Schwartz, Henry Herman1869 1955 - Wyoming Legislature 1933-1935 - U.S. Senator (Wyoming) 1936-1943 
Scobel, George E.1861     
Scott, Adam1839 1922   
Scott, Dave    - Appointed November 17, 2011, to replace Kent Juhnke who was appointed to the Senate 
Scott, Edward J.1882     
Scott, John A.1854 1938   
Scott, Millard G.1898     
Scott, R. W.1878 1918 - Died in office November 15, 1918. 
Scott, William M.1884 1965   
Scott, Z. D.      
Scovel, Allen Leedom1939     
Scribner, G. E. 'Casey'1906 1978 12 - Appointed January of 1961, to fill vacancy of Donald A. Haggar. 
Scroggs, James T.      
Scully, George L.1917 1999   
Sears, John D.1944 2013 12 - Majority Whip 1987-1992 - LRC Executive Board Chairman 1991-1992 
Sebert, Louis A. 'Lou'1935     
Sedam, E. E.1871     
Sedam, Robert T.1839 1929   
See, Bert A.1876     
Seide, Henry W.1888     
Seney, J. W.1851     
Senn, August1859     
Sessions, W. J.1860     
Severson, Jacob B.1870 1954   
Seward, Charles X.1856 1912 - Speaker of the House 1891-1892 
Shade, O. H.1879     
Shanard, George H.1926 2012 18 - Assistant Majority Leader 1977-1988 - LRC Executive Board member 1985-1990 - LRC Executive Board Vice Chairman 1987-1988 - LRC Executive Board Chairman 1989-1990 - Majority Leader 1989-1992 
Shankland, Foster C.1903   - LRC Executive Board member 1953 
Sharp, John C.1845 1906   
Sharp, Sigel D.1867 1928   
Shaw, Alvin M.1876     
Shaw, Archibald1843     
Shaw, Frederic Lonsdale1881 1948   
Shaw, Michael H.1924     
Shaw, William H.1866 1939   
Sheafe, Mark Wentworth, Jr.1883     
Sheafe, Mark Wentworth, Sr.1844 1930 - Territorial Legislature 1874 
Sheild, Rexford M.1889 1982 - LRC Executive Board member 1953-1954 
Shelden, Burdette1912     
Sheldon, Edward Thompson1838   - Territorial Legislature 1887 
Sheldon, Harvey L.      
Sheldon, M. S.      
Shelsta, Thomas1893 1975   
Sherin, Arthur L.1883 1940   
Sherman, Alfred1848     
Sherman, Edwin Alonzo1844 1916   
Sherrill, Albert1880     
Sherwood, Carl G.1855 1938 - Supreme Court Justice 1922-1931 
Shirey, J. R.1887     
Shirk, J. P.1873 1962   
Shirley, Chandler W.1844     
Shober, Howard C.1859   - Lieutenant Governor 1907-1911 
Shoemaker, Robert H.1920 1991   
Shoener, Jerry J.1927   - LRC Executive Board member 1995-2000 
Shorma, William J.1955   - Appointed April 30, 2015, to fill vacancy of Dan Lederman 
Short, Floyd C.1891 1976 - Elected to the House in 1939, but did not qualify. 
Shortbull, Thomas E.1946   - LRC Executive Board member 1985-1988 
Shortridge, L. C.1901 1976   
Shult, O. A.1873 1946   
Sichmeller, Joseph F.1878 1914   
Sickler, Jefferson      
Siedschlaw, A. J.1888     
Sieh, Edna1912    - Appointed October 20, 1986, to fill vacancy of Harold Sieh, husband. 
Sieh, Harold1912 1986 16 - LRC Executive Board member 1975-1976 - Died in office September 9, 1986. 
Sievers, A. G.1909     
Sieverson, Andrew1860     
Sigdestad, David S.1942   10   
Silkenson, H. C.1870 1928 - Died in office January 5, 1928. 
Simmons, John Curtis1857     
Simons, Blaine1891     
Simons, Leonard M.1874   16 - Secretary of the Senate 1905-1910 - President Pro tempore 1929-1932 and 1937-1938 
Simonson, Severt1862     
Simpson, Franklin Owen1929     
Simpson, Ritchie1856 1914   
Sims, John L.1873     
Sinclair, John E.1850     
Sinkular, William1884 1953 10   
Sivertson, Bob Duane1925 2016   
Skie, Marvin A.1914 1997   
Skluzak, Francis J.      
Skotvold, Selmer E.1921 1999 - Appointed December 28, 1970, to fill vacancy of Tom Young. 
Skutt, Roy1875     
Slade, Walter1864 1934   
Slaughter, Dale Walter1928     
Sletten, George O.1886     
Sletten, Thomas T.1866     
Sletto, Sander1894 1976   
Slifer, Earle R.1888     
Slocum, Edward C.1873   10   
Sly, Jacqueline Kay1948   - Majority Whip 2011-2014 
Smidt, Orville B.1943   12 - Assistant Majority Leader 1999-2000 - LRC Executive Board member 1999-2004 - LRC Executive Board Chairman 2003-2004 
Smith, Darius S.1833 1913   
Smith, Delos C.1893 1961 - Died in office March 24, 1961. 
Smith, Edmund1860     
Smith, Eldon L.1928 1972 - Died in office, Rapid City flood, in June of 1972. 
Smith, Ellis M.1857     
Smith, Forrester H.1852     
Smith, Frank E.      
Smith, H. P.1837     
Smith, Hugh1858     
Smith, I. J.1887     
Smith, J. N.1844     
Smith, J. O.1849     
Smith, James1860 1941   
Smith, Jamie1971   - Minority Leader 2019-2020 - LRC Executive Board member 2019-2020 
Smith, John1844 1928   
Smith, Louis1880     
Smith, Manning1861     
Smith, Miles F.1839 1918   
Smith, Orville1909 2008   
Smith, Richard L.1833 1919   
Smith, V. J.1955     
Smith, W. M.      
Snow, George W.1842 1927 - Lieutenant Governor 1901-1905 
Snyder, A. H.1848     
Snyder, Floyd 'Bill', Jr.1920 2005   
Soholt, Deb1956   - LRC Executive Board member 2013-2014 - Majority Whip 2015-2016 
Sokolow, Gary A.1955     
Solano, Alan D.1966   - Appointed January 13, 2014, to fill vacancy of Stan Adelstein - Majority Whip 2015-2016 (elected May 9, 2015 to replace Ried Holien) 
Solberg, Darrell D.1942     
Solberg, L. C.1864     
Solem, Henry G.1853     
Solem, Morrell R.1919 1989   
Soli, Karen L.1948   - Minority Whip 2017-2018 
Solomonson, Chester E.1898 1952 - Died in office June 2, 1952. 
Solum, Burdette C.1927 2012 - Appointed January 1, 1998, to fill vacancy of Donald Brosz. 
Solum, Roger D.1953     
Somers, Albert G.1845   - Speaker of the House 1899-1902 
Songstad, Sheldon R.1938   12   
Sonnenfeld, Emil1895     
Sophy, John F.1846     
Sorensen, Ed C.1908     
Sorenson, Dean P.1939   - Resigned in November of 1969. 
Sorenson, J. C.1886     
Sorenson, Oran A.1952     
Sorenson, Peter1870 1954 14   
Sorenson, Wilhelm1874 1951   
Sour, David1860 1930   
Southwick, John Carlyle1866 1941   
Spalding, Theodore E.1849     
Spargo, C. M.1886     
Spaulding, Theodore I.1913 2002   
Sperry, Allen R.1902     
Sperry, James Allen1930     
Spiers, J. R.1856 1937   
Spiry, Arthur W.1905     
Spooner, Irving R.1836     
Sprick, William1850 1920   
Springen, Knudt G.1841 1912   
Sproat, Robert H.1876     
St. John, Tamara1966     
Stabnaw, Henry F.1860     
Stafford, C. W.1841 1954   
Staggers, Kermit L.1947   - Resigned May 20, 2002 
Stalheim, Lawrence L.1919 2007   
Stalzer, Jim1946   - LRC Executive Board member 2017-2020 
Star, Solomon1840 1917 - President Pro tempore 1893-1894 
Stark, Willard H.1875     
Stavig, E. L.1888   10 - President Pro tempore 1947-1948 
Steadman, Floyd D.1885     
Stearns, Henry Ingram1855 1936   
Steckler, Casper1878     
Stedronsky, John1872 1931   
Steele, George M.1875     
Steele, Leland L.1911 1980 - LRC Executive Board member 1971-1972 
Steele, Manny1940   10 - Majority Whip 2009-2010 
Steensland, Almer Oscar1892 1965   
Steffes, John1869 1955   
Stein, J. C.1868 1942   
Steiner, Jacob D.1861     
Steinhauer, Wayne H.1956   - Appointed November 19, 2015, to fill vacancy of Steve Hickey 
Stenberg, H. David1937     
Stenning, John1857 1937   
Stensland, Carl A.1879     
Stensland, Linda L.1945   - LRC Executive Board member 1991-1994 
Stenson, R. C. 'Randy'1931     
Stephens, Charles M.1852 1940   
Stephens, E. W. 'Step'1900 1989   
Stephens, James H.1850   10 - Territorial Legislature 1879 
Stephens, Louis L.1875 1960   
Stephenson, Matt1897   10   
Sterling, Thomas1851 1930 - U.S. Senator 1913-1925 
Stern, Otto1909 1995 20 - LRC Executive Board member 1967-1970 - LRC Executive Board Chairman 1967-1968 
Stevens, George A.1832     
Stevens, Mike1953   - Majority Whip 2015-2016 - LRC Executive Board member 2017-2018 
Stewart, Alexander S.1839 1911 - Territorial Legislature 1887 
Stewart, Chester W.1904 1985   
Stewart, Fremont1860 1938   
Stewart, John S.1847     
Stewart, Robert W.1866     
Stewart, Truman M.1844     
Stiles, Frank A.1851     
Stiles, Frederick Bailey1887 1970   
Stillwell, Victor K.1856 1917   
Stites, Albert Harvey1858 1935   
Stoddard, George1859     
Stoddard, L. E.1879     
Stoddard, Leland K.1893     
Stoddard, William H.      
Stoebner, Andrew1897     
Stoeser, Bernard1930     
Stofferahn, Kenneth D.1934   - Resigned in August of 1976. - Public Utilities Commissioner 1979-1997 
Stoick, James L.1919 2004 18 - Assistant Majority Leader 1989-1992 
Stokes, Don G.1859     
Stokes, Hugh H.1881 1970 18 - Speaker Pro tempore 1949-1950 - Speaker of the House 1951-1952 - LRC Executive Board member 1951-1952 
Stokes, Oliver O.1845 1920   
Stoller, Henry1858     
Stoller, John1862     
Stoner, C. W.1854     
Stoner, John C.1881     
Stoner, Theorus R.1857 1942   
Storla, Ole Halverson1845 1897   
Storlie, William O.1860     
Storm, W. I.      
Stout, Richard Newton1844 1900   
Stove, Rasmus D.1851     
Strand, Arne1857     
Strand, Martin1880 1967   
Strand, Neal A.1924 2000 - State Treasurer 1969-1973 - Appointed July 8, 1994, to fill vacancy of Carole Hillard. 
Stranne, John O.1881 1942   
Stransky, Donald J.1907   11 - LRC Executive Board member 1957-1961 - Resigned in 1961. 
Stransky, John A.1865 1939   
Street, James E.1849     
Street, Steven T.1950   - Minority Whip 2011-2012 
Streeter, Norman B.1855 1936   
Streff, Clyde E.1935 1998 10   
Stricherz, Patricia Kay1960     
Strohbehn, Frank S.1873 1958   
Strom, David J.1943 2007   
Strong, Charles W.1882 1974 12   
Stroup, Fredrick Joshua1854 1926   
Stuelpnagel, Dan1910 1971 - Appointed December 4, 1962, to fill vacancy of William E. Johnson. 
Stumley, Martin A.1856 1926   
Stutenroth, Charles Edward1870 1957   
Stuverud, Gunder H.1846 1924   
Sullivan, Agnes C.1899 1984   
Sullivan, Kelly1986     
Summerside, William1845 1915   
Sunde, James L.1873     
Sutherland, John1858 1941   
Sutherland, W. H.  1916   
Sutley, Carman H.1913 1986   
Sutley, Zack T.1848 1930   
Sutton, Billie H.1923 1982 - LRC Executive Board member 1975-1978 
Sutton, Billie Harmon1984   - Assistant Minority Leader 2013-2014 - Minority Leader 2015-2018 - LRC Executive Board member 2015-2018 
Sutton, Daniel D. 'Dan'1970   10 - LRC Executive Board member 1999-2000 - Minority Whip 2001-2006 - Resigned November 14, 2006 
Sutton, Duane O.1954     
Sutton, Edwin DeLos1865 1937   
Sutton, John E. 'Matt'1931   - Chief Clerk of the House 1973-1974 
Sutton, Margaret A.1957   - Appointed 8/8/2018 to fill vacancy of Jenna Netherton. 
Swain, Bruce W.1900     
Swanson, Ole A.1858   14   
Swanson, R. A.1879 1959   
Swartout, C. C.1875     
Swedling, Martin B.1888     
Sweeney, William E.1877     
Sweet, E. T.1849 1902   
Swenning, John1872 1959 10   
Swenson, Duaine V.1919 2001 12   
Swenson, Joseph1873     
Swenson, Ole      
Swisher, Jay C.1921 2008   
Swope, Frank1892     
Symens, Paul N.1943   16 - Assistant Minority Leader 1991-1992 and 2003-2004 - Assistant Majority Leader 1993-1994 - LRC Executive Board member 1997-1998 
Taecker, George H.1880 1952   
Tagg, Lawrence R.1893 1987   
Tank, Carl F.1879 1960   
Tapio, Neal1970     
Taylor, Edward W.1868 1909  - Died in office in 1909. 
Taylor, King S.      
Taylor, Maris1847     
Taylor, Walter Charles1895 1983 - LRC Executive Board member 1959-1960 
Taylor, William R.1926 2010 - Appointed August 11, 1987, to fill vacancy of David S. Laustsen. - LRC Executive Board member 1991-1992 
Teare, John1850 1936   
Teets, Benjamin F.1842   - Speaker Pro tempore 1891-1892 
Teets, Harry C.1868     
Teigen, K. O.1872     
Temmey, James E.1886 1918 - Died in office November 12, 1918. 
Terry, Rex1888 1964 - Lieutenant Governor 1949-1955 
Terveen, John V.1914 2003   
Teske, Herb1928 2001   
Testerman, Philip1927   10 - Assistant Minority Leader 1979-1980 
Teupel, John E.1962   - Majority Whip 2003-2004 
Thayer, Denton B.1860 1930   
Thelin, A. L.1896     
Thielman, Vale P.1843   - Territorial Legislature 1881 
Thieman, Francis R.1936 2008   
Thoene, Julius1873 1968 10   
Thomas, W. F.1885   14 - LRC Executive Board member 1953-1954 
Thomas, William 'Sherm'1864 1940   
Thomas, William R.1854     
Thompson, Alfred C.1890     
Thompson, Arthur S.1896     
Thompson, Carveth S.1932   - Appointed January 16, 1969, to fill vacancy of Morris Hallock. 
Thompson, Charles K.1860 1948   
Thompson, D. R.1857 1940   
Thompson, Edwin R.1842     
Thompson, H. D.1885     
Thompson, Jim D.1947   - Resigned December 31, 1997. 
Thompson, John1865 1934   
Thompson, Louis J.1876 1950   
Thompson, Martin Lewis1879     
Thompson, Olymphious S.1875     
Thompson, Orville W.1871     
Thompson, S. R.1881     
Thompson, Thorsten T.1874 1930 - Died in office in 1930. 
Thompson, William R. 'Bill'1944     
Thomson, James S.1866     
Thoreson, Gilbert1869 1910 - Died in office May 8, 1910. 
Thornby, William J.1856 1919   
Thorstenson, Verne E.1934     
Thue, Peter1894 1963   
Thurow, C. H.1869     
Thurston, W. A.1871 1960   
Tibbits, A. L.      
Tidball, V. D.1885 1946 - Died in office in 1946. 
Tidblom, Charles A.1867     
Tidemann, Larry J.1948   14 - LRC Executive Board member 2007-2012 - LRC Executive Board Chair 2007-2008 
Tiede, David J.1890 1951 10 - President Pro tempore 1941-1944 
Tiede, Gottlieb1896     
Tiede, Nathaniel S.1886 1968   
Tieszen, Craig1949 2017 - LRC Executive Board member 2009-2014, 2017-2017 - Majority Whip 2011-2012 - Died in office November 22, 2017. 
Tiffany, Oliver M.1877     
Tiffany, W. J.1872     
Timmer, John1931 2018 12   
Titland, G. G.1860 1941   
Tjeerdsma, Jess1907 1977 - Died in office August 20, 1977. 
Tobin, Michael L.1857     
Tollefson, John1864 1942   
Tollefson, Morgan L.1899 1975   
Tomlinson, Frank E.1854     
Tommeraason, O. J.1896     
Tornow, R. Shawn1962     
Torrence, Chester C.1873     
Tower, I. D.1869     
Toy, Edward C.1857     
Tracy, Donald1911     
Trask, Kenneth A.1914 1975 - Appointed March 23, 1967, to fill vacancy of Clell Elwood. 
Treber, John1853 1936   
Tripp, John B.1856 1924   
Trippler, Dean Charles1890     
Trotman, Frank1855 1924   
Trotter, John G.1879 1942   
Trotter, Joseph1903 1984   
Truax, Marshall John1910 1996   
Truman, Glenn E.1896     
Truman, Philetus Clark1841 1901   
Trumbo, Frank1850   10   
Trumbo, George B.1837     
Trumm, William1856     
Trygstad, Carl O.1884 1943   
Trygstad, Martin N.1843 1918 - Territorial Legislature 1872 and 1879 
Tscharner, Peter J.1878   - Speaker of the House 1913-1914 
Tschetter, Menno1919 2003 10 - Assistant Minority Leader 1972 - Speaker Pro tempore 1973-1974 
Tschetter, Paul S.1905 1997   
Tschirley, Herman1880     
Tubbs, George W.1884 1959   
Tubbs, Newton Seymour1853 1933   
Tubbs, W. A. 'Bill'1912 1994   
Tulson, Burt E.1947     
Tunell, G. G.1887     
Turbak Berry, Nancy J.1956     
Turbiville, Charles M.1943 2018 10 - Majority Whip 2007-2008 - LRC Executive Board member 2009-2012 - LRC Executive Board Chair 2011-2012 
Turner, Frank1859 1919   
Turner, Lyman C.1842     
Twito, H. T.1882     
Two Bulls, Theresa B.1949     
Tyler, D. W.1836     
Tyler, George W.1861     
Tyler, John G.1852     
Tyler, Kathleen A.1952   - LRC Executive Board member 2013-2014 
Tyler, Levi Stone1847 1908   
Tysdal, Ralph M.1937     
Udseth, R.1858     
Uecker, Wilmont M.1914 2002   
Uken, Julius1886 1971   
Ullman, Roy1886 1966 10   
Ulmer, Julius William1862 1941   
Ulrikson, Sam K.1892 1972   
Unzicker, Wayne1926 1998 - LRC Executive Board member 1967-1968 
Urdahl, Hans1867   10   
Utter, Ernest S.1896 1982   
Vaith, Joseph G.1890     
Valandra, Paul J.1953   16   
Van Bockern, Harold1914     
Van Camp, William N.1876 1961 - Secretary of the Senate 1913-1918 
Van Dan Acker, Henry1880     
Van Demark, Walter E.1882 1916 - Died in office January 12, 1916. 
Van Etten, Donald D.1934     
Van Gerpen, Bill L.1949   12 - Reelected in 2004, Resigned January 3, 2005. 
Van Gerpen, Edward E.1938   10   
Van Gerpen, Herman W.1870 1941   
Van Gerpen, Louise1926 2015 - Appointed October 4, 1983, to fill vacancy of Roland Van Gerpen, husband. 
Van Gerpen, Roland1926 1983 - Died in office July 13, 1983. 
Van Horn, L. A.1881 1941   
Van Norman, Thomas J.1964   - Minority Whip 2007-2008 
Van Ornum, Leon C.1875 1946   
Van Osdel, Abraham L.1845 1936 - Territorial Legislature 1865-1866, 1874, 1881, 1885 and 1889 
Van Ruschen, H.1877     
Van Sickle, R. Lee1922 2000   
Van Wagner, Evelyn1899     
Van Woert, Henry1836 1916 - Territorial Legislature 1883 
Van Zee, F. E.1867 1951   
Vance, Edwin H.1859     
Vandanacker, W. D.      
Vandercook, Ralph1879 1945   
Vanderlinde, Martha M.1951     
Vanderlinde, Mary1929 2005 10 - Minority Whip 1989-1990 
Vanneman, Kim Lois1957     
VanOverschelde, Dennis1945   - Minority Whip 1993-1994 
Varilek, Elvern1925 2004 10 - Minority Leader 1963-1965 - LRC Executive Board member 1963-1968 
Varnum, Joseph B.1830 1896   
Varnum, Wilbur F.1868     
Vehle, Michael W.1949   12   
Venner, Mark E.1950   - LRC Executive Board member 2011-2012 
Verchio, Michael Jon1944     
Vercoe, Walter L.1861 1946   
Verschoor, John J.1892     
Vessey, Robert S.1858 1929 - President Pro tempore 1907-1908 - Governor 1909-1913 
Vick, George P.1859     
Vigen, David C.1933 2019 - Appointed May 21, 1971, to fill vacancy of Robert R. Giebink, resigned April 1974. 
Viken, Linda Lea M.1945   - Served as Linda Lea M. Miller 1973-1976 - LRC Executive Board member 1991-1992 - Minority Whip 1991-1992 
Vitter, Drue J.1942 2004   
Voigt, Arthur A.1882 1966   
Voigt, Herman1853 1930   
Volesky, Ron J.1954   16 - Majority Whip 1983-1986 
Vreeland, Robert E.1854 1908   
Vucurevich, John T.1912 2005 10 - LRC Executive Board member 1953-1956 
Waddel, William Garner1870 1937   
Waddell, Richard W.1922 2016   
Waddle, Fred F.1881 1954   
Wade, Gilbert C.1846     
Wagner, Coleman H., Sr.1893 1967   
Wagner, Edward E.1874     
Wagner, Henry Adam1871 1937   
Wagner, James A.1880     
Wagner, Mary Kathryn1932 2004 12   
Wagner, Michael D.1957   - Assistant Majority Leader 1993-1994 - LRC Executive Board member 1995-1996 
Wahl, J. J.1880     
Wahl, Jacob1876 1945   
Waldron, Wesley C.1857     
Walker, Bruce J.1930 2003   
Walker, Frederick E.1872     
Walker, LeRoy1853 1926   
Walker, Ray D.1874     
Walkes, Herman1859     
Walkes, Klas1864 1925   
Wall, Carl F.1896     
Wall, Thomas G.1880     
Wallace, D. C.1875     
Wallace, John J.1864 1942   
Wallahan, Franklin Jay1935   - Resigned summer of 1972. 
Wallar, W. E.1875 1949   
Walter, Merwyn H.1911 1995 - LRC Executive Board member 1965-1966 
Walters, Benjamin F.1842 1927   
Walters, Soloman1844     
Waltman, Alfred A. 'Al'1930   14   
Waltner, Andrew J.1877     
Waltner, Emil J.1883     
Wanzer, Edwin Peck1863 1928   
Warkenthien, Gene E.1930 2010 12   
Warne, Lee1922 2002   
Warner, Fred W.      
Warner, H. C.1850     
Warren, Edward H.1859 1927   
Warren, Henry K.      
Warren, James R.1882     
Washabaugh, Frank J.1849 1902 - Territorial Legislature 1883-1889 - President Pro tempore 1889-1890 
Waters, Glen M.1885     
Watkins, John E.1858     
Watson, George1851     
Watson, Joshua1844     
Watwood, Edgar  1927   
Way, Alvin S.1838     
Weaver, John R.1858     
Webb, Frank W.1851 1926   
Webber, Joel F., Jr.1861     
Weber, Robert R.1925   28   
Weckman, Peter J.1886 1962   
Weeks, Irving A.1855     
Weems, Keri K.    - Appointed January 14, 2003, to fill vacancy of Mike Jaspers. 
Weide, Adolph1860     
Weidensee, William1887     
Weier, Leon C.1891     
Weir, Carl H.1887 1949 10   
Weirauch, Clarence Merrill1879 1977   
Weis, Kaleb1983     
Welch, H. H.1864     
Welch, Irving H.1860   - Won contested seat after the 5th legislative day. 
Welch, John D.1848 1922   
Welch, Warren1872 1946   
Welke, Charles Burl1953     
Weller, Charles Sam1878     
Welo, James I.1847 1914   
Wentzy, Harry1874 1924   
Wermuth, Oscar R.1873 1954   
Werner, Richard Edward1957     
Wescott, C. R.1843     
Wess, Freeman Earl1881     
Wessel, J. F.1880     
Westby, M. A.1863     
Westphal, H. C.1890     
Westra, Steven Mark1969   - LRC Executive Board member 2013-2014 - Majority Whip - 2014 (replaced Jon Hansen) - Assistant Majority Leader 2015-2016 
Wetz, Kenneth John1948     
Weverstad, H. W.1882     
Whealey, Rufus1852 1938   
Wheatley, John O.      
Wheeler, George E.1860 1928   
Wheeler, O. E.1833     
Wheelock, Edwin D.1847     
Whipple, Frank W.1921 1993   
Whisman, H. M.1889     
White, Caleb Ellis1857 1941   
White, Charles E. 'Pete'1916 1972 - Resigned after session in 1965. 
White, Chauncey A.1875 1952   
White, George W.1879     
White, H. D.  1915   
White, Jim1944   10 - LRC Executive Board member 2015-2016, 2019-2020 - Assistant Majority Leader 2015-2016 (elected May 9, 2015 to replace Dan Lederman) 
White, Mathew1814 1888   
White, Michael J.1838 1917   
White, Thomas L.1861 1947   
Whitehead, Emery L.1899 1983   
Whiting, Fred C.1938   10 - Majority Whip 1999-2000 
Whiting, George H.1856     
Whiting, John E.1860 1951   
Whitlock, John F.1858   10   
Whitney, Harry Carroll1882 1961   
Whitney, Odell K.1884 1967 - Lieutenant Governor 1931-1933 
Whittemore, Winfred E.1868     
Whorton, Daniel P.1857     
Wick, Hal Gerard1944 2018 20 - LRC Executive Board member 1977-1978 - 1997 election determined by House of Representatives. - Majority Whip 2003-2004 - Majority Whip 2011-2012 
Wickens, David L.1890     
Wickens, George Ernest1888     
Wickhem, P. F.1855 1922   
Wickre, Jacob O.1888 1949   
Widlon, John1867     
Widman, Paul J.1936     
Wieczorek, Dean Eldon1934 2001 - Majority Whip 1983-1984 
Wiedenman, Walter V.1899 1995   
Wiersbeck, Henry1858 1937   
Wiese, Andrew J.1914 2003 22   
wiese, Marli    - Appointed January, 31, 2017, to fill vacancy of Matthew Wollmann 
Wiest, Eugene H.1923 1998   
Wieting, Charles H.1882     
Wiik, John1972     
Wilcox, Fred M.1858     
Wildermuth, Paul1862     
Wilkes, John1838     
Wilkinson, E. G.1877     
Wilkinson, Sever1843 1911   
Wilkinson, Walter H.1851     
Will, Henry P.1862     
Willadsen, Mark1955   13 - Appointed June 16, 2014, to fill vacancy of Christine Erickson. 
Willard, W. B.1881     
Williams, Andrew      
Williams, Fred W.1886 1971   
Williams, Harry D.1893     
Williams, James Edwin1872 1933  - Elected to the Senate in 1933, unable to serve due to illness. 
Williams, R. H.1843     
Williams, Richard1857     
Williams, Robert K.1935   - LRC Executive Board member 1979-1983 - Resigned November 15, 1983. 
Williams, Roger O.1893 1951   
Williams, Vern1888     
Williams, William A.1851     
Williamson, A.      
Williamson, John H.1859   - President Pro tempore 1903-1904 
Williamson, John Poage1835 1917   
Williamson, Ray F.1883   - Speaker of the House 1927-1928 
Williamson, Ron F.1941   - Appointed to House, July 1, 2002, to fill vacancy of Gene Abdallah. - LRC Executive Board member 2003-2004 
Willis, James Platt1831     
Willis, Mark Austin1867 1949   
Willoughby, Herbert A.1903 1990 - Appointed July 13, 1963, to fill vacancy of Hagen Kelsey. 
Willrodt, Harold B.1896 1984   
Willrodt, Lawrence H.1845 1918   
Willsie, Myron1839 1926   
Wilmarth, Albert W.1856 1924   
Wilson, C. J.1889     
Wilson, C. M.1851     
Wilson, Charles E.1874     
Wilson, Clifford A.1883 1953   
Wilson, Ethereal1847     
Wilson, John F.1869     
Wilson, Michael A. 'Mike'1959     
Wilson, Ole K.1864     
Wilson, Stephen Eugene1852 1926 - President Pro tempore 1895-1896 
Wilson, T. G.      
Winans, Fred R.1904 1987 - Supreme Court Justice 1971-1976 
Windhorst, Dana J.1955   - Resigned September 16, 1999. 
Wingerd, Abram Beam1868 1931   
Wink, Dean Albert1944   - Speaker Pro Tempore 2013-2014 - Speaker of the House 2015-2016 - LRC Executive Board member 2015-2016 - LRC Executive Board Chair 2015 - LRC Executive Board Vice Chair 2016 
Winnor, Edward1859     
Winslow, Seth T.1842     
Winters, Walter W.1883 1946 - Died in office February 26, 1946. 
Wintrode, W. G.1866 1944   
Wipf, Andreas A.1868     
Wipf, David John1891 1966 12   
Wipf, John J.1870 1941 14   
Wishard, Della M.1934   12   
Wishart, Joseph S.1892     
Wismer, Susan M.1955   10 - Minority Whip 2017-2018 
Withee, Ephriam H.1845     
Wittmayer, John B.1878   - Senate Sergeant-at-Arms 1937 
Wittmayer, John W.1861     
Wofford, Marion Gay1925   10   
Wohlheter, Charles L.1859 1927   
Wollman, Harvey1935   - Minority Leader 1971-1972 - Majority Leader 1973-1974 - LRC Executive Board Chairman 1973-1974 - Lieutenant Governor 1975-1978 - Became Governor July 24, 1978, due to resignation of Richard F. Kneip. 
Wollmann, Mathew1990   - Resigned January 23, 2017 
Wolsky, Dave A.1938     
Wolter, Carl1896     
Wolzmuth, John1849 1924 12 - Territorial Legislature 1887 
Wood, Ernest H.1874     
Wood, John L.1890     
Wood, Joshua Franklin1849 1925   
Wood, Royal J. 'Bud'1922 2009 26 - LRC Executive Board member 1973-1978 and 1981-1986 and 1989-1992 - Assistant Majority Leader 1975-1976 - LRC Executive Board Vice Chairman 1977-1978 and 1985-1986 - Speaker Pro tempore 1987-1988 - Speaker of the House 1989-1990 
Wood, Walter F.1881     
Woodford, George R.1859     
Woodring, Ralph1910   - Montana Legislature 1959-1960 
Woodruff, James M.1864     
Woods, Delos M.1876 1937   
Woods, M. T.1899 1983   
Woods, William Robert1879     
Woody, Edgar W.1864     
Wooledge, A. J.1844 1909   
Wooley, John H.1873     
Woolley, Birney C.1867     
Woolworth, Jessie Ernest1877 1943   
Worrall, Charles M.1878   10   
Wosnuk, Theo1877     
Wray, Ed M.1880     
Wright, B. F.1845     
Wright, C. C.1834     
Wright, Donn H.1921 1999   
Wright, Fred W.1870 1961   
Wright, George W.1872 1937   
Wright, J. C.1874 1954   
Wright, Warner C.1843 1933   
Wudel, Richard Allen1941     
Wumkes, W. W.1885     
Wyman, Alfred Lee1874     
Wyman, Frank D.1841 1913   
Yeager, Bert T.1892 1984   
Yeager, Silas S.1857     
Yirsa, John J.1862     
York, Nancy1947     
Yorker, A. J.1864     
Young, Charles1844     
Young, Charles J.1892 1974   
Young, Don1896   12   
Young, Mark Allen1952     
Young, Sutton E.1847   - Speaker of the House 1889-1890 
Young, Thomas Owen1937 1970 - Appointed November 20, 1969, to fill vacancy of Dean P. Sorenson. - Elected November 1970, died November 26, 1970. 
Young, Warren1854 1944   
Youngberg, Jordan1990   - Majority Whip 2019-2020 
Youngquist, E. V.1881 1945 - State Treasurer 1943-1945, died in that office. 
Zabel, Walter L.1914 2007 12   
Zafft, Paul F.1863     
Zamow, August E.1899 1993   
Zeller, George1867 1942   
Ziebach, Jacob E.1858 1929 10   
Zikmund, Larry P.1946     
Zimmerman, Albert Julius1893 1969 10   
Zimmermann, Robert C.1858     
Zink, William1869     
Zoske, Alfred1875 1926   

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