J. Adam Ernst
August 1863 - August 1881
Rudolf A. Eifert
January 1914 - late 1917
Dayton Fritz
July 1963 - September 1970
John Frosch
August 1881 - April 1898
Arthur H. Gallmeier
February 1918 - March 1929
Ronald R. Reisdorf
October 1970 - September 1977
Richard A. Frey
September 1989 - present
Paul Graupner
May 1899 - September 1913
Frank Malinsky
April 1929 - July 1963
Mervin D. Huras
November 1977 - January 1989