Douglas, William O. (William Orville), 1898-1980 and Eccles, Marriner S. (Marriner Stoddard), 1890-1977. Letter to Chairman Eccles, Box 49, Folder 16, Item 6, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/467322, accessed on March 16, 2025.