Letter to Harvey Cushing, August 10, 1922
Letter to Henry Mills Hurd, June 21, 1902
Letter to Lawrason Brown, November 24, 1903(?)
Letter to Lawrason Brown, May 8, 1903
Letter to Lawrason Brown, April 4, 1903
Letter to Lawrason Brown, March 30, 1903
Letter to Lawrason Brown, March 17, 1903
Letter to Lawrason Brown, October 13, 1902
Letter to Lawrason Brown, October 3, 1902
Letter to Lawrason Brown, December 8, 1902