Letter to Prof. Thayer, October 3, 1896
Letter to Harvey Cushing, April 22, 1925
Letter to Harvey Cushing, April 22, 1925
Letter to William Osler, April 29, 1915
Letter to Frederick Cheever Shattuck, undated
Letter to William Osler, June 27, 1919
Letter to James William White, April 19, 1913
Letter to Anson Phelps Stokes, April 17, 1913
Newspaper extract, April 16, 1913
Letter to Editor of the Evening Sun, April 16, 1913
Letter to Leonard L. Mackall, April 16, 1913