- Elliot S.M. Hill 1866–1869 Democrat
- William N. Monies 1869–1872 Republican
- Mathew W. Loftus 1872–1875 Democrat
- Robert H. McKune 1875–1878 Democrat
- Terence Vincent Powderly 1878–1884 Greenback-Labor Party
- Francis Allen Beamish 1884–1886 Democrat
- Ezra H. Ripple 1886–1890 Republican
- John H. Fellows 1890–1893 Republican
- William Lawrence Connell 1893–1896
- James G. Bailey 1896–1899
- James Moir 1899–1901 Republican
- William Lawrence Connell 1901–1903 Republican
- Alex T. Connell 1903–1906
- J. Benjamin Dimmick 1906–1909 Republican
- John Von Bergen Jr. 1909–1914 Republican
- Edmund B. Jermyn 1914–1918
- Alex T. Connell 1918–1922
- John F. Durkan 1922–1926
- Edmund B. Jermyn 1926–1930 Republican
- Fred K. Derby 1930–1934
- Stanley J. Davis 1934–1938 Republican
- Fred J. Huester 1938–1942 Republican
- Howard J. Snowdon 1942–1946
- James Thomas Hanlon 1946–1962 Democrat
- William T. Schmidt 1962–1966 Republican
- James J. Walsh 1966–1970
- Eugene J. Peters 1970–1978 Republican
- Eugene F. Hickey 1978–1982 Democrat
- James Barrett McNulty 1982–1986 Democrat
- David J. Wenzel 1986–1990 Republican
- Jim Connors 1990–2002 Republican (1990–2000) Democrat (2000–2002)
- Christopher Doherty 2002–2014 Democrat