Committee on the History of the Federal Reserve System (U.S.)
and Calkins, Robert De Blois, 1903-. General Correspondence : Publicity for Project (1954-1956), Entry 164, Box 9, Folder 7,
Committee on the History of the Federal Reserve System.
https://fraser.stlouisfed.org/archival/1342/item/457539, accessed on March 5, 2026.