Letter fragment, June 1864
Letter to Harvey Cushing, November 3, 1920
Letter to Harvey Cushing, June 3, 1920(?)
Letter to Harvey Cushing, April 8, 1920
Cushing's notes on Osler ancestry
Letter to Harvey Cushing, March 7, 1921
Cushing's research notes
Cushing's notes, Osler's character
Cushing's notes, Osler's ancestry
Cushing's notes, Mrs. Simcoe