Kristina Leal
May 2016 – April 2018

Veronica Wenzel
April 2014 – April 2016

Warren Andrich
April 2016 – August 2016

Marsha Hardeman
April 2013 – April 2017

John Longoria
June 2012 – April 2013 

Patricia McDaniel
April 2010 – April 2014

Virginia Barbosa
September 2005 – April 2010

Frank “Rocco” Montesano
November 2004 –  April 2018

Adela D. Flores
April 2004 – August 2005

Priscilla Waller
January 2003 – April 2016

Evelyn J. Crothers
June 2002 – April 2004

Elmer Charles Wilson
August 2000 – April 2014

William D. Bonilla
March 1999 – May 2012

Harold R. Fredickson Jr
March 1999 – November 2004

Patricia Boone
October 1999 – April 2000