Hamlin, Charles S. (Charles Sumner), 1861-1938. "Index-Digest of Charles S. Hamlin Diaries, Box 18, Volume 3, Reel 13, January 17, 1915-August 30, 1916" in Diaries of Charles S. Hamlin (January 17, 1915-August 30, 1916). https://fraser.stlouisfed.org/title/5194/item/7578, accessed on August 6, 2024.