Letter to William Osler, July 5, 1914
Letter to William Osler, January 4, 1918
Letter to William Osler, January 6, 1913
Letter to William Osler, January 10, 1919
Letter to William Osler, January 28, 1919
Letter to William Osler, July 15, 1915
Letter to William Osler, July 24, 1918
Letter to William Osler, July 27, 1918
Letter to William Osler, July 18, 1912
Letter to William Osler, September 5, 1916