Letter to Edward A. Sharpey Schäfer, November 10, 1883
Letter to Ellen Osler, December 26(?), 1875
Letter to Ellen Osler, January 16, 1871
Letter to Francis John Shepherd, April 6, 1875
Letter to Francis John Shepherd, January 1, 1875
Letter to Francis John Shepherd, May 28, 1875
Letter to Harvey Cushing
Letter to Harvey Cushing
Letter to Harvey Cushing
Letter to Harvey Cushing
Letter to Harvey Cushing, April 14, 1921
Letter to Harvey Cushing, April 28, 1920