| Lewis A. Estes | 1871-1874 |
| Benjamin F. Trueblood | 1874-1879 |
| David Dennis | 1879-1881 |
| James B. Unthank | 1881-1903 |
| Albert J. Brown | 1903-1912 |
| Samuel H. Hodgin | 1912-1915 |
| J. Edwin Jay | 1915-1927 |
| Henry G. Williams | 1927-1928 |
| Beverly O. Skinner | 1928-1931 |
| Walter Collins | 1932-1940 |
| S. Arthur Watson | 1940-1947 |
| Samuel D. Marble | 1947-1959 |
| +*W. Brooke Morgan | 1959-1960 |
| James M. Read | 1960-1969 |
| +*W. Brooke Morgan | 1969-1970 |
| Robert E. Hinshaw | 1971-1975 |
| Robert E. Lucas | 1975-1982 |
| Neil Thorburn | 1982-1995 |
| Daniel A. DiBiasio | 1995-2011 |
| James M. Reynolds | 2012-2020 |
| +*Erika Goodwin | 2020-2021 |
|
Trevor M. Bates |
2021 - 2023 |
| Coreen Cockerill 2023-2024 | |