Letter to Henry Vining Ogden, December 27, 1883
Letter to Edward A. Sharpey Schäfer, November 10, 1883
Letter to Henry Vining Ogden, July 13, 1883
Letter to Henry Vining Ogden, November 10, 1883
Letter to Henry Vining Ogden, May 20, 1884
Letter from Robert Palmer Howard, April 1, 1871
Letter to Harvey Cushing, September 19, 1921
Letter to Jennette Osler, October 22, 1871(?)
Letter to William Osler, November 12, 1914
Letter to Thomas R. Boggs, June 12, 1909