Letter to William Osler, April 25, 1917
Letter to William Osler, April 20, 1917
Letter to William Osler, March 29, 1917
Letter to William Osler, January 26, 1917
Letter to William Osler, March 10, 1917
Letter to William Osler, December 6, 1916
Letter to William Osler, December 5, 1916
Letter to William Osler, September 5, 1916
Letter to William Osler, April 21, 1916
Letter to William Osler, April 1, 1916