Letter to Susan Revere Chapin
Letter to Souchon, December 4, 1914
Letter to Souchon, January 19, 1915
Letter to John Young Walker MacAlister, October 3, 1919
Letter to William S. Halsted, October 4, 1919
Letter to William McCormick, October 6, 1919
Letter to Thomas W. Salmon, October 2, 1919
Letter to W. Langdon Brown, October 3, 1919
Letter to Susan Revere Chapin, October 5, 1919
Letter to George Newman, October 6, 1919