- Stephen F. O'Keefe: 2019 - Present
- Stephen N. Betcher: 1997 - 2019
- Gary Fridell: 1979 - 1997
- Richard W. Johnson: 1971 - 1978
- Francis Watson: 1956 - 1970
- Milton I. Holst: 1935 - 1955
- Theodore Ofstedahl: 1924 - 1935
- Arthur E. Arntson: 1919 - 1923
- Thomas Mohn: 1913 - 1918
- William M. Erieson: 1907 - 1913
- Albert Johnson: 1897 - 1907
- John C. McClure: 1895 - 1897
- Samuel J. Nelson: 1891 - 1895
- Frank M. Wilson: 1883 - 1891
- C.N. Akers: 1881 - 1883
- John C. McClure: 1869 - 1881
- James H. Parker: 1865 - 1869
- Warren Bristol: 1863 - 1864
- J.F. Pingrey: 1861
- James H. Parker: Part of 1860
- Clinton Gurnee: 1859 - 1860
- P.F. Perkins: 1858
- Charles Gardner: 1857
- Philander Sandford: 1855 - 1857
- Charles Gardner: 1854
