Letter, 9 December 1898
Letter, 28 December 1899
Letter to Harvey Cushing, April 17, 1920
Letter to Harvey Cushing, April 1, 1920
Letter to Harvey Cushing, May 18, 1925
Letter to Harvey Cushing, May 18, 1925
Letter to Harvey Cushing, August 25, 1925
Letter to Harvey Cushing, August 25, 1925
Letter to Harvey Cushing, December 28, 1925
Letter to Harvey Cushing, December 28, 1925
Letter to Harvey Cushing, September 24, 1925
Letter to Harvey Cushing, September 24, 1925
Letter to Harvey Cushing, September 2, 1925
Letter to Harvey Cushing, September 2, 1925
Letter to Harvey Cushing, September 12, 1925
Letter to Harvey Cushing, September 12, 1925