Eccles, Marriner S. (Marriner Stoddard), 1890-1977 and Sproul, Allan, 1896-1978. Letter to Chairman Eccles, Box 50, Folder 2, Item 8, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/468599, accessed on June 21, 2025.