Letter to William Osler, November 15, 1917
Letter to William Osler, April 30, 1918
Letter to William Osler, November 26, 1917
Letter to William Osler, December 15, 1917
Letter to William Osler, December 31, 1917
Letter to William Osler, May 22, 1918
Letter to William Osler, July 24, 1918
Letter to William Osler, April 1, 1919
Letter to William Osler, November 26, 19115
Letter to William Osler, November 12, 1917