Letter to Francis John Shepherd, May 28, 1875
Letter to Harvey Cushing, May 27, 1920
Letter to Harvey Cushing, July 14, 1921
Letter from and, A. and William Osler Ramsay, July 15, 1876
Letter from William Osler, March 18, 1878
Letter to Harvey Cushing, July 12, 1921
Letter to William Osler, August 1880
Letter to Henry Vining Ogden, April 16, 1882
Letter to Harvey Cushing, September 2, 1920
Letter to Henry Vining Ogden, May 20, 1883