Eccles, Marriner S. (Marriner Stoddard), 1890-1977 and Widnall, William B. (William Beck), 1906-1983. Letter to M. S. Eccles, Box 61, Folder 2, Item 17, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/460962, accessed on March 22, 2025.