Letter to Harvey Cushing, June 3, 1920
Letter to William Osler, June 27, 1919
Letter to John Cohn Hemmeter, November 26, 1916
Letter to Charles Nicoll Bancker Camac, November 9, 1916
Letter to William Osler, April 29, 1915
Letter to Leonard L. Mackall, April 16, 1913
Letter to Editor of the Evening Sun, April 16, 1913
Letter to Anson Phelps Stokes, April 17, 1913
Letter to James William White, April 19, 1913
Letter to William Osler, January 16, 1913