Past Presidents and Chairs of the Board of Directors
| 2025- | Dr. Jason Cabaj |
| 2021-2024 | Dr. Vamini Selvanandan |
| 2021 | Dr. Benita Cohen |
| 2019-2020 | Dr. Richard Musto |
| 2017-2018 | Dr. Suzanne Jackson |
| 2015-2016 | Dr. Ardene Robinson Vollman |
| 2013-2014 | Dr. Lynn McIntyre |
| 2011-2012 | Ms. Erica Di Ruggiero |
| 2009-2010 | Dr. Cordell Neudorf |
| 2007-2008 | Mr. Ron de Burger |
| 2005-2006 | Ms. Sheilah Sommer |
| 2002-2004 | Dr. Christina Mills |
| 1999-2001 | Dr. David Butler-Jones |
| 1997-1998 | Dr. John Hastings |
| 1995-1996 | Ms. Nancy Kotani |
| 1993-1994 | Mr. Merv Ungurain |
| 1991-1992 | Ms. Fran Perkins |
| 1989-1990 | Ms. Sandy McKenzie |
| 1987-1988 | Dr. Franklin M.M. White |
| 1985-1986 | Mrs. Karen Mills |
| 1983-1984 | Dr. David A. Clarke |
| 1981-1982 | Dr. Marie Loyer |
| 1979-1980 | Mr. Ralph Ricketts |
| 1977-1978 | Dr. K.E. Benson |
| 1976 | Dr. E.A. Watkinson |
| 1975 | Dr. E.S.O. Smith |
| 1974 | Dr. Boyd Suttie |
| 1973 | Dr. Jean M. Fredette |
| 1972 | Dr. Vince L. Matthews |
| 1971 | Mrs. Geneva Lewis |
| 1970 | Dr. James B. Morrison |
| 1969 | Dr. C.B. Stewart |
| 1968 | Dr. James A. Taylor |
| 1967 | Dr. Leonard A. Miller |
| 1966 | Dr. Jacques Gelinas |
| 1965 | Dr. M.G. McCallum |
| 1964 | Dr. O.H. Curtis |
| 1963 | Dr. Ken C. Charron |
| 1962 | Dr. Gordon W. Brown |
| 1961 | Dr. H. Burns Roth |
| 1960 | Dr. John S. Robertson |
| 1959 | Dr. Jules Gilbert |
| 1958 | Dr. S. Murray |
| 1957 | Dr. L.A. Pequegnat |
| 1956 | Dr. J.A. Melanson |
| 1955 | Dr. A. Sommerville |
| 1954 | Mr. T.J. LaFreniere |
| 1953 | Dr. R.D. Defries |
| 1952 | Dr. M.R. Elliott |
| 1951 | Dr. G.D. Cameron |
| 1950 | Dr. J.T. Phair |
| 1949 | Dr. A.G. Morton |
| 1948 | Dr. G.F. Amyot |
| 1947 | Dr. A.R. Foley |
| 1946 | Dr. C.W. MacMillan |
| 1945 | - |
| 1944 | Dr. B.T. McGhie |
| 1943 | Dr. A. Groulx |
| 1942 | Dr. J.J. McCann |
| 1941 | Dr. J. Gregoire |
| 1940 | Dr. R.O. Davidson |
| 1939 | Dr. R.E. Wodehouse |
| 1938 | Dr. P.S. Campbell |
| 1937 | Dr. M.R. Bow |
| 1936 | Dr. J.W. McIntosh |
| 1935 | Dr. F.W. Jackson |
| 1934 | Dr. A. Lessard |
| 1933 | Dr. Wm. Warwick |
| 1932 | Dr. W.J. Bell |
| 1931 | Dr. F.C. Middleton |
| 1930 | Dr. A.J. Douglas |
| 1929 | Dr. N.M. Harris |
| 1926-1928 | Dr. G.D. Porter |
| 1925 | Dr. J.A. Baudouin |
| 1924 | - |
| 1923 | Dr. J.A. Baudouin |
| 1922 | Dr. W.F. Roberts |
| 1921 | Dr. A.Y. Amyot |
| 1920 | Dr. H.E. Young |
| 1919 | Dr. J.A. Hutchinson |
| 1918 | Dr. W.H. Hattie |
| 1917 | Dr. J.D. Page |
| 1916 | Dr. C.J. Hastings |
| 1915 | Dr. M.M Seymour |
| 1914 | Dr. C.J. Hastings |
| 1913 | Dr. John W.S. McCullough |
| 1912 | Dr. C.A. Hodgetts |
| 1910-1911 | Dr. T.A. Starkey |