| Charles W. Edwards | 1924-1937 |
| Walter M. Nielsen | 1938-1961 |
| Harold W. Lewis |
1961-1963 |
| Henry Fairbank |
1963-1973 |
| Henry Newson |
1973-1975 |
| William D. Walker |
1975-1981 |
| Harold W. Lewis |
1981-1986 |
| Frank C. DeLucia |
1986-1988 |
| Lawrence E.
Evans |
1988-1997 |
| Berndt Mueller |
1997-1999 |
| Robert P. Behringer |
1999-2002 |
| Harold U. Baranger |
2002-2005 |
| Daniel J.
Gauthier |
2005-2011 |
| Haiyan Gao |
2011-present |