Elected by Voters to 6-year terms (Constitution of 1851, Art. IV, sec. 18):
1851-1857 James Wason
1857-1865 William Logan
Elected by Voters to 6-year terms (Constitution of 1864, Art. IV, sec. 46):
1865-1867 William Logan
Elected by Voters to 6-year terms (Constitution of 1867, Art. IV, sec. 41):
1867-1873 Mathias S. Barber
1873-1918 Thomas E. Hilliard (D)
1918-1919 Thompson A. Brown (R)
1919-1926 John D. Hollyday (D)
Elected by Voters to 4-year terms (Constitution of 1867, Art. XVII, added by Chapter 227, Acts of 1922, ratified Nov. 7, 1922):
1926-1928 John D. Hollyday (D) (resigned 1928) (1882-1948)
1928-1930 Charles A. Weagley (D)
1930-1956 Harry Newcomer
Elected by Voters to 4-year terms (Constitution of 1867, Art. IV, sec. 41, amended by Chapter 99, Acts of 1956, ratified Nov. 6, 1956):
1956-1962 Harry Newcomer
1962-1982 Thomas W. Parks (D)
1982-1992 Marvin E. Toms
1992-2010 John R. Bloyer II (D)
2010- Jason A. Malott (D)
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