Letter to Harvey Cushing, June 28, 1920
Letter to Harvey Cushing, June 2, 1920
Letter to Harvey Cushing, November 4, 1921
Letter to Harvey Cushing, December 15, 1921
Letter to Harvey Cushing, March 19, 1921
Letter to Harvey Cushing
Letter to Harvey Cushing, July 8, 1925
Letter to Harvey Cushing, July 8, 1925
Letter to Harvey Cushing, July 21, 1925
Letter to Harvey Cushing, July 21, 1925
Letter to Harvey Cushing, July 27, 1925
Letter to Harvey Cushing, July 27, 1925
Letter to Harvey Cushing, September 17, 1925
Letter to Harvey Cushing, September 17, 1925