Letter from Richard M. Pearce to Wilder Penfield, July 30, 1929.
Letter from Robert A. Lambert to Wilder Penfield, July 19, 1934.
Letter from Robert A. Lambert to Wilder Penfield, July 6, 1934.
Letter from Robert C. Bates to Wilder Penfield, November 10, 1959.
Letter from Robert S. Morison to Wilder Penfield, March 3, 1953.
Letter from Robert S. Morison to Wilder Penfield, May 4, 1953.
Letter from Robert S. Morison to Wilder Penfield, October 21, 1952.
Letter from Ross Millar to Wilder Penfield, June 10, 1942.
Letter from Ross Millar to Wilder Penfield, June 4, 1942.
Letter from Ruth Rosecrans to Helen Kermott Penfield.
Letter from S.R. Russell (Comptroller, McGill University) to Wilder Penfield, April 29, 1930.
Letter from Sir Arthur Currie to Louis-Alexandre Tashereau, October 1, 1931.
Letter from Sir Arthur Currie to Wilder Penfield, August 17, 1932.
Letter from Sir Arthur Currie to Wilder Penfield, August 29, 1932.
Letter from Sir Arthur Currie to Wilder Penfield, August 31, 1933.