Letter from Charles Martin to Wilder Penfield, January 12, 1928.
Letter from Charles Martin to Wilder Penfield, January 31, 1928.
Letter from Charles Martin to Wilder Penfield, January, 17 1928.
Letter from Charles Martin to Wilder Penfield, November 28, 1927.
Letter from Charles Miller Fisher to Paul Vaillancourt, August 6, 1946.
Letter from Charles Miller Fisher to Wilder Penfield, August 16, 1946.
Letter from Colin Russel to Wilder Penfield, April 27, 1941.
Letter from Colin Russel to Wilder Penfield, July 26, 1940.
Letter from Colin Russel to Wilder Penfield, October 3, 1930.
Letter from D.L. Thomson to Bernard Berelson, August 29, 1955.
Letter from D.O. Hebb to Wilder Penfield, February 5, 1953.
Letter from Daniel Bell and Ogden Mills to Wilder Penfield, September 26, 1928.
Letter from David James Corrigall to Charles Miller Fisher, August 8, 1946.
Letter from Donald McEachern to Wilder Penfield, July 25, 1944.
Letter from Donald McEchern to Wilder Penfield, Februrary 17, 1934.