Letter to W.H. Howell, May 14, 1904
Letter to Francis John Shepherd, October 30, 1901
Letter to Margaret E. Charlton, October 24, 1900
Letter to Henry Vining Ogden, December 10, 1903
Letter to Unidentified, October 29, 1901
Letter to Charles Ferdinand Martin, December 7, 1903
Letter to Henry Barton Jacobs, October 29, 1901
Letter to Henry Vining Ogden
Letter to Henry Vining Ogden
Letter to Simon Flexner, October 11, 1900
Letter to C.N.B. Camac, December 5, 1903