Douglas, William O. (William Orville), 1898-1980 , Eccles, Marriner S. (Marriner Stoddard), 1890-1977 and Vest, George B. Letter to Mr. Eccles, Box 49, Folder 16, Item 7, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/460549, accessed on March 22, 2025.