Letter from Wilder Penfield to Ross Millar, June 9, 1942.
Letter from Wilder Penfield to Ross Millar, November 9, 1942.
Letter from Wilder Penfield to Sir Arthur Currie dated 17 Oct. 1932.
Letter from Wilder Penfield to Sir Arthur Currie, April 19, 1933.
Letter from Wilder Penfield to Sir Arthur Currie, August 24, 1932.
Letter from Wilder Penfield to Sir Arthur Currie, August 24, 1932.
Letter from Wilder Penfield to Sir Arthur Currie, Janurary 22, 1933.
Letter from Wilder Penfield to Sir Arthur Currie, May 8, 1933.
Letter from Wilder Penfield to Sir Arthur Currie, October 12, 1932.
Letter from Wilder Penfield to Sir Arthur Currie, September 16, 1933.
Letter from Wilder Penfield to Sir Charles Sherrington, February 3, 1934.
Letter from Wilder Penfield to Sir Charles Sherrington, November 9, 1934.
Letter from Wilder Penfield to Sir Henry Dale, August 13, 1959.
Letter from Wilder Penfield to Sir Henry Dale, December 30, 1958.
Letter from Wilder Penfield to Sir Henry Dale, January 25, 1960.