Letter to Charles Ferdinand Martin, March 25, 1902
Letter to Charles Ferdinand Martin, May 8, 1902
Letter to Charles Ferdinand Martin, October 27, 1903
Letter to Charles Ferdinand Martin, November 7, 1903
Letter to Charles Ferdinand Martin, December 2, 1903
Letter to Charles Ferdinand Martin, December 7, 1903
Letter to Charles Ferdinand Martin, April 19, 1904
Letter to Charles Ferdinand Martin, July 1904
Letter to Charles Ferdinand Martin, November 10, 1904
Letter to Charles Ferdinand Martin, November 15, 1904