| Russell M. Shore | Merchant | 1970 - 1976 |
| Jerry McKibbin | Banker | 1970 - 1976 |
| Nick Lopez | Banker | 1970 - 1979 |
| Jerry Kimball | Manager | 1979 - 1980 |
| Norm Carey | Rancher | 1975 - 1982 |
| Gerald Rowen | Doctor | 1970 - 1983 |
| Robert Barthelmess | Rancher | 1970 - 1984 |
| Duane Mathison | Farmer/Rancher | 1985 - 1987 |
| Jessica Stickney | Legislator | 1978 - 1988 |
| Paul Mottram | Banker | 1983 - 1991 |
| Milt Benge | Nursing Home Administrator | 1980 - 1993 |
| Marshall Gardner | Farmer/Rancher | 1987 - 1994 |
| Ken Bowar | Business/Insurance | 1982 - 1994 |
| Eilleen Carlson | Dairy Owner | 1970 - 1998 |
| Mark Griffith | Building Supply | 1992 - 1999 |
| Bill Bickle | Banker | 1993 - 2000 |
| Tom Albers | Financial Advisor | 1994 - 2004 |
| James P. Lucas | Lawyer | 1970 - 2005 |
| Scott Tally | Paint/Glass Business | 1998 – 2006 |
| Tom Clarke | Insurance | 2000 – 2007 |
| Todd Steadman | Hardware | 2005 - 2007 |
| Bill Griffin | Rancher | 2001 – 2009 |
| Kelly Reid | Comfort Inn | 2007 – 2010 |
| Jan Wagner | Teacher – Retired | 1998 – 2010 |
| Jeff Harding | Business/Investment | 2010 - 2013 |
| Sharon Wilcox | Health Care Administrator | 1989 – 2014 |
| Rusty Irons | Conservationist | 2007 – 2016 |
| Tad Torgerson | Certified Public Accountant | 2014 – 2017 |
| Mark Peterson | Research Leader USDA-ARS Fort Keogh Livestock & Range Research Laboratory | 2010 – 2019 |
| Susan Morlock | Teacher – Retired | 2006 – 2021 |
