| Number | Begin | End | Name |
| 21 | May 2022 | | Dave L. Clarke |
| 20 | September 2021 | May 2022 | Henry Ghent |
| 19 | February 2020 | September 2021 | Vine Gray |
| 18 | January 2019 | February 2020 | Gavin G. Carillo |
| 17 | May 2017 | January 2019 | Dylan A. Bordonaro |
| 16 | May 2015 | May 2017 | Shiheem N. Jones |
| 15 | September 2014 | May 2015 | Luke Caputo |
| 12 | May 2014 | May 2014 | Bryan M. Bilski |
| 13 | May 2014 | May 2014 | Ruben Morales |
| 14 | May 2014 | September 2014 | Bryan M. Bilski |
| 11 | September 2013 | May 2014 | Derek Petruzzo |
| 10 | November 2012 | September 2013 | Mike A. Rivera |
| 9 | May 2012 | November 2012 | Patrick M. Severing II |
| 8 | December 2011 | May 2012 | Chris P. Stewart Baptiste |
| 7 | November 2011 | December 2011 | Edward P. Oliva |
| 6 | April 2011 | November 2011 | Zachary A. Lucien |
| 5 | October 2010 | April 2011 | John D. Olsson |
| 4 | May 2010 | October 2010 | William P. Morrison II |
| 3 | March 2010 | May 2010 | Andrew T. Burns |
| 2 | April 2009 | March 2010 | Charles Sweeney |
| 1 | November 2008 | April 2009 | Robert J. Dubben |