Hamlin, Charles S. (Charles Sumner), 1861-1938. "Index-Digest of Charles S. Hamlin Diaries, Box 29, Volume 15, Reel 18, August 1, 1928-March 22, 1929" in Diaries of Charles S. Hamlin
(August 1, 1928-March 22, 1929).
https://fraser.stlouisfed.org/title/5194/item/533154, accessed on April 6, 2025.
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