| Number | Begin | End | Name |
| 65 | May 2023 | May 2023 | Kato F. Fischer |
| 66 | May 2023 | | Caelan J. Neibert |
| 64 | January 2023 | May 2023 | Ron Jackson |
| 63 | April 2022 | January 2023 | John Schilling |
| 62 | September 2021 | April 2022 | Mitchell S. Seifert |
| 61 | December 2016 | January 2018 | Ricky A. Rickenbach |
| 60 | January 2016 | December 2016 | Holden Hendricks |
| 59 | January 2015 | January 2016 | Dustin T. Patterson |
| 58 | January 2014 | January 2015 | Nate J. Dressler |
| 57 | January 2013 | January 2014 | Nick R. Malley |
| 56 | January 2012 | January 2013 | Mark J. Sextro |
| 55 | March 2011 | January 2012 | Mr. Jake K. Van Slyke III |
| 54 | April 2010 | March 2011 | Joseph Winters |
| 53 | February 2009 | April 2010 | Kristopher J. Nielsen |
| 52 | April 2008 | February 2009 | Alex Porte |
| 51 | May 2007 | April 2008 | Aaron Payne |
| 50 | June 2006 | May 2007 | Josh Coup |
| 49 | December 2004 | June 2006 | Alex Plassmeyer |
| 48 | February 2004 | December 2004 | Joseph D. Lantz |
| 47 | February 2003 | February 2004 | Heath Hancock |
| 46 | January 2002 | February 2003 | Ryan G. Heikes |
| 45 | May 2001 | January 2002 | John W. Holtzclaw II |
| 44 | March 2000 | May 2001 | Charles H. Kappauf, Jr. |
| 43 | January 2000 | December 2000 | Mr. Dave B. Raddatz |
| 42 | February 1998 | January 2000 | Robert J. Fescoe |
| 41 | November 1996 | February 1998 | Greg L. Wiggins |
| 40 | January 1996 | November 1996 | Andrew Guth |
| 39 | January 1996 | January 1996 | Jon D. Wheeler |
| 38 | January 1995 | January 1996 | Britton C. Haney |
| 37 | June 1994 | January 1995 | George W. Wyatt |
| 36 | January 1993 | June 1994 | Christopher D. Livingston |
| 35 | January 1992 | | Timothy F. Marks |
| 34 | January 1992 | December 1992 | James Moloney |
| 33 | January 1991 | December 1991 | John W. Hamilton |
| 32 | January 1990 | December 1990 | Lawrence Jenkins |
| 31 | January 1989 | December 1989 | Jeffrey s. Hockersmith |
| 30 | January 1988 | December 1988 | Ronald C. Ramberg, Jr. |
| 29 | January 1987 | December 1987 | Lance E. Schmidt |
| 28 | January 1986 | December 1986 | Joseph S. Campbell |
| 27 | September 1982 | September 1983 | Mitch G. watt |
| 26 | January 1982 | December 1982 | James K. Seidel |
| 25 | January 1981 | December 1981 | Mickey D. O'Dell |
| 24 | January 1980 | December 1980 | Thomas R. O'Boyle |
| 23 | January 1979 | December 1979 | Gregg A. Beattie |
| 22 | January 1978 | December 1978 | Michael D. Jantsch |
| 20 | December 1974 | December 1975 | Rob C. Baker |
| 21 | December 1974 | December 1975 | Rob C. Baker |
| 19 | January 1973 | December 1973 | Dean W. Cherpitel |
| 18 | January 1971 | December 1971 | Daniel J. Strausbaugh |
| 17 | January 1969 | December 1969 | Donald J. Hineman |
| 16 | January 1965 | December 1965 | Thomas E. Shumaker |
| 15 | January 1964 | December 1964 | William R. Lennard |
| 14 | August 1963 | May 1963 | Lauren S. Ward |
| 13 | January 1962 | December 1992 | Jon L. Shaffer |
| 12 | January 1960 | December 1960 | C. Daniel Turner |
| 11 | January 1956 | December 1956 | Richard L. Bond |
| 10 | January 1955 | December 1955 | Jess Wheeler |
| 9 | January 1953 | December 1953 | Billy D. Todd |
| 8 | January 1951 | December 1951 | James H. Martin |
| 6 | January 1949 | December 1950 | Charles L. Boulware |
| 7 | January 1949 | December 1949 | Ralph R. Brock |
| 1 | | | Rob C. Baker |
| 2 | | | Michael J. Friesen |
| 3 | | | James A. Hess |
| 4 | | | Ronald L. Allen |
| 5 | | | Robert D. Keelin |