| Reg Hugo | Manitoba | 1950-1964 |
| E.G. Pridham | Ontario | 1964-1968 |
| Gordon Hancock | Saskatchewan | 1968-1970 |
| D. Crawford Smyth | Ontario | 1970-1972 |
| W. Donald Goodfellow | Alberta | 1972-1974 |
| Jean Crittal | Ontario | 1974-1977 |
| C.O. Hunt | Ontario | 1977-1978 |
| J.F.K. English | British Columbia | 1978-1980 |
| R.R. Publow | Manitoba | 1980-1981 |
| H.D. Scully | Nova Scotia | 1981-1983 |
| Kathleen Keple | Saskatchewan | 1983-1985 |
| Barry McDell | British Columbia | 1985-1987 |
| Colleen Wilson | Alberta | 1987-1989 |
| Elizabeth Lupton Enns | Manitoba | 1989-1991 |
| James Mendenhall | Manitoba | 1991-1995 |
| J. Alexander Clark | Prince Edward Island | 1995-1997 |
| Mac Jones | Alberta | 1997-1999 |
| Doris Covey Lazecki | Saskatchewan | 1999-2001 |
| Gérald Goguen | New Brunswick | 2001-2003 |
| James Harmsworth | Ontario | 2003-2005 |
| Dianne Johnstone | Alberta | 2005-2009 |
| Steven Fielder | Ontario | 2009-2010 |
| Pam Allen | Ontario | 2010-2012 |
| Marilyn Wiwcharuk | British Columbia | 2012-2015 |
| Jerry Lonsbury | Alberta | 2015-2017 |
| Joy McFarlane-Burton | Saskatchewan | 2017-2019 |
| Judy Urbonas | Manitoba | 2019- |