Hamlin, Charles S. (Charles Sumner), 1861-1938. "Index-Digest of Charles S. Hamlin Diaries, Box 31, Volume 17, Reel 19, November 1, 1929-May 31, 1930" in Diaries of Charles S. Hamlin (November 1, 1929-May 31, 1930). https://fraser.stlouisfed.org/title/5194/item/533158, accessed on September 11, 2024.