Letter to Charles Ferdinand Martin, July 12, 1911
Letter to Charles Ferdinand Martin, December 18, 1912
Letter to Charles Ferdinand Martin, April 19, 1904
Letter to Charles Ferdinand Martin, February 6, 1905
Letter to Charles Ferdinand Martin, January 2, 1899
Letter to Charles Ferdinand Martin, October 27, 1903
Letter to Charles Ferdinand Martin, November 7, 1903
Letter to Charles Ferdinand Martin, February 1, 1905
Letter to Charles Ferdinand Martin, July 28, 1902
Letter to Charles Ferdinand Martin, November 19, 1912