- 2012 – 2022: Rogan T. Kersh
- 2011 – 2012: Mark E. Welker (Interim)
- 2007 – 2011: Jill M. Tiefenthaler
- 2002 – 2007: William (Bill) C. Gordon
- 1998 – 2002: Samuel T. Gladding and Edwin (Ed) G. Wilson
- 1990 – 1998: Dave Brown
- 1967 – 1990: Edwin (Ed) G. Wilson