Letter to Harvey Cushing, October 1, 1915
Letter to Harvey Cushing, August 15, 1921
Letter to Harvey Cushing, May 12, 1920
Letter to Harvey Cushing, May 12, 1920
Letter to Harvey Cushing, April 28, 1920
Letter to Harvey Cushing, May 17, 1920
Letter to Harvey Cushing, May 12, 1920
Letter to Harvey Cushing
Letter to Harvey Cushing
Letter to Harvey Cushing, May 22, 1920
Letter to Harvey Cushing
Letter to Harvey Cushing
Letter to Harvey Cushing, May 27, 1920