| Number | Begin | End | Name |
| 42 | May 2020 | | Taken P. Belinowski |
| 41 | April 2020 | June 2019 | Taken P. Belinowski |
| 40 | June 2019 | May 2020 | Mason Snell |
| 39 | April 2019 | April 2020 | Mason Snell |
| 38 | May 2018 | April 2019 | Michael V. Howell |
| 37 | May 2017 | May 2018 | Jackson Spencer |
| 36 | November 2015 | May 2017 | Tyler Feuerbacher |
| 35 | August 2014 | August 2014 | Alexander Smith |
| 34 | August 2014 | November 2015 | Alexander Smith |
| 33 | April 2013 | August 2014 | Ryan Miller |
| 32 | November 2012 | April 2013 | Kyle L. Westbrook |
| 31 | November 2011 | November 2012 | Robert X. Arriaga Carbajal |
| 30 | January 2011 | November 2011 | Chaston D. Pruitt |
| 29 | January 2010 | January 2011 | Michael A. Thormer |
| 28 | June 2009 | January 2010 | Kenny T. Thomas |
| 27 | November 2007 | June 2009 | Dustin Garner |
| 26 | December 2006 | November 2007 | Grant W. Gerber |
| 25 | December 2005 | December 2006 | Michael Lopez |
| 24 | October 2005 | December 2005 | Patrick Ferguson |
| 23 | April 2005 | October 2005 | Matthew R. Munsell |
| 22 | December 2003 | April 2005 | Steven G. McGinn |
| 21 | November 2001 | December 2003 | Vincent Ferrigno |
| 20 | December 2000 | November 2001 | Wade Williams, Jr. |
| 19 | January 2000 | December 2000 | John W. Barton |
| 18 | July 1999 | January 2000 | Eric B. Licker |
| 17 | December 1997 | July 1999 | H S. Apley |
| 16 | December 1996 | December 1997 | Arthur W. Moore, Jr. |
| 15 | September 1996 | December 1996 | Scott J. Orta |
| 14 | December 1994 | September 1996 | Eric S. Muirhead |
| 13 | November 1992 | December 1994 | J D Davis |
| 12 | October 1992 | | James C. Becker |
| 11 | January 1992 | | Jorge R. Barreda |
| 10 | January 1992 | December 1992 | David N. Lipe |
| 9 | January 1991 | December 1991 | Robert L. Dunning, Jr. |
| 8 | January 1987 | December 1988 | Michael C. Curley |
| 1 | | | Edward Devlin |
| 2 | | | John Lopez IV |
| 3 | | | Bill W. Vahrenkamp, III III |
| 4 | | | Perry K. Hamilton |
| 5 | | | James G. Boynton |
| 6 | | | Kevin M. Franke |
| 7 | | | Austin Kanuch |