Wilder Graves Penfield, M.D.
Director 1934 - 1960
Theodore Brown Rasmussen, M.D.
Director 1960 - 1972
William Feindel, M.D.
Director 1972 - 1984
Donald Baxter, M.D.
Director 1984 - 1992 & 2000 - 2002
Richard Murphy, Ph.D.
Director 1992 - 2000
David R. Colman, Ph.D.
Director 2002 - 2011