| Number | Begin | End | Name |
| 32 | November 2024 | | Connor P. Whalen |
| 31 | November 2023 | November 2024 | Cameron L. Smith |
| 30 | November 2022 | November 2023 | Alec R. Stasiak |
| 29 | November 2021 | November 2022 | John Curry |
| 28 | November 2020 | November 2021 | Tyler Sullivan |
| 27 | December 2019 | November 2020 | Cyn-Tonio M. Bright-Mitchell |
| 26 | December 2018 | December 2019 | Tim A. Pier |
| 25 | August 2018 | December 2018 | Jacob R. Keefer |
| 24 | November 2017 | August 2018 | Nick J. Abdella |
| 23 | November 2015 | November 2017 | Cody J. Derrer |
| 22 | January 2015 | November 2015 | Luke L. Allison |
| 21 | December 2013 | January 2015 | Jordany Deus |
| 20 | November 2011 | December 2013 | Josh Szypa |
| 19 | January 2011 | November 2011 | Paul Siebert |
| 18 | December 2009 | January 2011 | Tyler Ulreich |
| 17 | September 2008 | December 2009 | Christopher L. Reed |
| 16 | January 1997 | May 1997 | William J. Bettendorf |
| 15 | December 1996 | January 1997 | Todd M. Penner |
| 14 | December 1995 | December 1996 | Jason A. Belaire |
| 13 | January 1995 | December 1995 | Frank A. Romeo |
| 12 | January 1994 | December 1994 | Timothy S. Arnold |
| 11 | February 1993 | November 1993 | Timothy G. Conley |
| 10 | May 1992 | | Matthew J. Bokach |
| 9 | January 1981 | December 1981 | Thomas L. Eddington |
| 7 | January 1978 | December 1979 | Robert L. Wentworth III |
| 8 | January 1978 | December 1979 | Robert L. Wentworth III |
| 6 | January 1973 | December 1973 | William F. Marsh |
| 5 | January 1962 | December 1962 | Gary L. Olsaver |
| 4 | January 1961 | December 1963 | John S. Safran |
| 1 | | | Richard A. Gurdjian |
| 2 | | | Job M. Winters |
| 3 | | | Don P. Hammerstrom |