| Director | From | To |
| J Eugene Pickett | April 1970 | April 1974 |
| Archie Forson | April 1970 | November 1979 |
| Grant A. Ramey | April 1970 | December 1993 |
| Edward E. Estes | April 1970 and again November 1981 | November 1979 and November 1997 |
| Thomas Boring | April 1970 | August 1971 |
| Lyle Harrison | August 1971 | November 1971 |
| Julius Hooven | August 1974 | November 1979 |
| Gary Stockwell | November 1975 | November 1981 |
| Sandra Corcoran |
December 1979
|
November 1983
|
|
Ben E. Shepherd
|
December 1979 | November 1999 |
| Don Harling |
November 1981
|
November 2001 |
| Joe Walund |
November 1983
|
November 1999
|
|
Lewis Klein
|
November 1993
|
August 1997
|
| Eleanor Sullivan |
September 1997
|
November 1997 |
| Jill Geist |
December 1997
|
November 2001 |
| Ordell Murphy |
December 1997
|
November 2005 |
| Javan Reid |
November 1999
|
November 2003 |
| Paul Trepanier |
November 1999
|
April 2007 |
| John Fleury |
December 2001
|
July 2001 |
| Dr. Bill Wennerholm |
December 2001
|
November 2013 |
| John Corbett |
August 2002
|
Current |
| Kevin Masters |
December 2003
|
November 2005 |
| Jeff Dunk |
December 2005
|
November 2009 |
| Ron Coffman |
May 2007
|
November 2007 |
| Helen Edwards | December 2007 | July 2016 |
| Dennis Mayo | September 2008 | Current |
| David Couch | November 2009 | Current |
| George Wheeler | November 2013 |
Current |
| Mary Burke | March 2017 | Current |