Letter to Harvey Cushing, June 3, 1920
Letter to Harvey Cushing, April 1, 1920
Letter to Harvey Cushing, April 17, 1920
Letter to Harvey Cushing, 1921
Letter to Harvey Cushing
Letter to Harvey Cushing, August 28, 1921
Letter to Harvey Cushing, March 22, 1921
Letter to Harvey Cushing, 1890
Letter to Harvey Cushing, September 1921(?)
Letter to Harvey Cushing, May 19, 1920