James E. Humphries 13 Feb 1989	Edward R. Garton 01 Aug 1998	Robert G. Drennan 20 Feb 1999	Homer W. Jones 30 May 2005
Robert B. Davidson 01 Oct 2007	Stephen H. Scott 11 Apr 2010	Eugene D. Griffith 27 Sep 2012	Jerry W. Witherspoon 22 Jan 2013
Arthur E. Judson 22 Jul 2021	James H. DeMent Jr. 13 Mar 2026