Letter to William Sydney Thayer, May 30, 1905
Letter to William Sydney Thayer, September 27, 1905
Letter to William Sydney Thayer, October 26, 1905
Letter to William Sydney Thayer, February 26, 1906
Letter to William Sydney Thayer, April 3, 1906
Letter to William Sydney Thayer, (1906 ?)
Letter to William Sydney Thayer, August 3, 1906
Letter to William Sydney Thayer, February 8, 1908
Letter to William Sydney Thayer, July 7, 1908
Letter to William Sydney Thayer, November 24, 1909