Elected by Voters to 6-year terms (Constitution of 1851, Art. IV, sec. 18):
1851-1862 James L. Ridgely (resigned Sept. 30, 1862)
1862-1863 Samuel F. Butler
1863-1865 John Philpot
Elected by Voters to 6-year terms (Constitution of 1864, Art. IV, sec. 46):
1865-1867 John Philpot
Elected by Voters to 6-year terms (Constitution of 1867, Art. IV, sec. 41):
1867-1873 Oliver P. Magill
1873-1879 Joseph B. Mitchell (D)
1879-1881 William H. Koller (died April 14, 1881)
1881-1887 Thomas Philpot
1887-1893 Benjamin W. Ady
1893-1899 Henry N. Hebb
1899-1905 Harrison Rider
1905-1907 John E. Bolte (died Feb. 16, 1907)
1907-1926 William J. Peach
Elected by Voters to 4-year terms (Constitution of 1867, Art. XVII, added by Chapter 227, Acts of 1922, ratified Nov. 7, 1922):
1926-1930 William J. Peach
1930-1956 Joseph P. Connor (D)
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):
1956-1961 Joseph P. Connor (D)
1961 Edgar J. DeMoss
1962-1966 Matthew T. Hogan
1966-1978 J. Louis Davis
1978-1998 Peter J. Basilone (D)
1998- Grace G. Connolly (D)
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