Letter to George H. Simmons, July 5, 1917
Letter to Thomas McCrae, July 24, 1912
Notes taken from Osler's diary, 1914
Cushing's notes, 1907
Letter to John Young Walker MacAlister, July 3, 1918
Notes taken from Osler's diary, 1919
Notes taken from Osler's diary, 1915
Notes taken from Osler's diary, 1918
Letter to Mabel Brewster, July 10, 1916
Letter to James Tyson, January 1, 1918