Letter from Edward Archibald to Wilder Penfield, August 9, 1928.
Letter from Edward Archibald to Wilder Penfield, December 18, 1929.
Letter from Edward Archibald to Wilder Penfield, February 29, 1928.
Letter from Edward Archibald to Wilder Penfield, January 13, 1930.
Letter from Edward Archibald to Wilder Penfield, January 20, 1928.
Letter from Edward Archibald to Wilder Penfield, July 23, 1928.
Letter from Edward Archibald to Wilder Penfield, June 14, 1927.
Letter from Edward Archibald to Wilder Penfield, June 28, 1928.
Letter from Edward Archibald to Wilder Penfield, June 8, 1927.
Letter from Edward Archibald to Wilder Penfield, March 8, 1928.
Letter from Edward Archibald to Wilder Penfield, May 25, 1928.
Letter from Edward Archibald to Wilder Penfield, November 14, 1927.
Letter from Edward Archibald to Wilder Penfield, November 7, 1927.
Letter from Edward Archibald to Wilder Penfield, October 19, 1927.
Letter from Edward Archibald to Wilder Penfield, October 25, 1927.