| Moses Lee (1834-1836) | Howard C. Hummon (1909-1913) |
| Unknown (1836-1841) | Theodore Heckman (1913-1917) |
| Jabez S. Spencer (1841-1847) | Forest A. Henry (1917-1921) |
| John Dixon (1847-1849) | Joesph W. Heckman (1921-1925) |
| Jabez S. Spencer (1849-1853) | Owen J. O’Donnell (1925-1931) |
| Frederick W. Schierloh (1853) | Wilbur E. Dunlap (1931-1935) |
| Joseph Tingle (1853-1856) | Henry A. Kistler (1935-1941) |
| John Nicewarner (1856-1859) | Carl R. Minning (1941-1948) |
| Peter I. Bowman (1859-1865) | P. Lloyd Hauck (1948-949) |
| James Monroe (1865-1871) | Samuel Ford (1949-1953) |
| William N. Wetherell (1871-1877) | Amanda M. Lighthill (1953-1977) |
| William Alt (1877-1883) | Joseph E. Ruhe (1977-1989) |
| Leroy M. Ludwig (1883-1890) | A. Marie Heitmeyer (1989-2005) |
| Joseph Justice (1890-1896) | Cathy S. Recker (2005-2021) |
| John Cowan (1896-1902) | Lori Rayle (2021-2022) |
| Frank Gmeiner (1902-1909) | |