Letter to William Sydney Thayer, 1892
Letter to William Raphael, February 7, 1885(?)
Letter to William Raphael, 1886(?)
Letter to William Pepper, October 3, 1888
Letter to John S. Billings
Letter to John S. Billings
Letter to John H. Musser, October 15, 1888
Letter to John H. Musser, May 13, 1889
Letter to John H. Musser, January 18, 1889
Letter to John H. Musser, December 3, 1887