Letter to William Osler, January 16, 1913
Letter to William Osler, May 22, 1913
Letter to William Osler, June 4, 1913
Letter to William Osler, July 17, 1913
Letter to William Osler, October 24, 1913
Letter to William Osler, January 21, 1914
Letter to William Osler, May 11, 1914
Letter to William Osler, May 23, 1914
Letter to William Osler, December 3, 1914
Letter to William Osler, June 30, 1915