Letter to William Osler, October 19, 1875
Letter to William Osler, September 4, 1876
Cushing's note on Osler book, 1869-70
Letter to James Bovell (Jimmie) Johnson, October 19, 1874
Letter to James Bovell (Jimmie) Johnson, December 20, 1905
Letter to William Osler, February 13, 1867
Letter to Daniel Coit Gilman, 1897(?)
Biographical sketch of James Bovell
Letter to Harvey Cushing, June 6, 1920
Cushing's notes, Osler's student life, 1920