Letter to John Young Walker MacAlister, January 15, 1914
Letter to Thomas Archibald Malloch, January 13, 1916
Letter to Mrs. Alexander Dougall Blackader, August 25, 1916
Letter to William Sydney Thayer, January 24, 1917
Letter to George Cheever Shattuck, January 10, 1919
Cushing's notes, July 12, 1919
Letter to James J. Walsh, January, 1906
Letter to A.F. Hurst, October 6, 1919
Letter to Charles J. Martin, August 10, 1914
Letter to Henry Barton Jacobs, February 1, 1909