Benton, Madeleine E. , Musgrave, Richard A. (Richard Abel), 1910-2007 , Paul, Randolph E., 1890-1956 and Thurston, Elliott. Memorandum to Mr. Thurston, Box 26, Folder 5, Item 3, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/462029, accessed on June 20, 2025.