Letter to Henry Vining Ogden, July 15, 1904
Letter to James William White, (February 2, 1906 ?)
Letter to John George Adami, 1902
Letter to Henry Phipps, May 10, 1907
Letter to Katharine Stone Crowell Cushing, May 2, 1913
Letter to C.N.B. Camac, August 14, 1904
Letter to Henri Amédée Lafleur, May 6, 1903
Letter to J.R. Chadwick, 1903
Letter to Henri Amédée Lafleur, November 14, 1903
Letter to Jennette Osler, January 23(?), 1878