Board of Governors of the Federal Reserve System (U.S.), 1935-. Report of the Sub-Committee on the Social Security Board's Statements Relating to Tax Collections and Benefit Payments in the Calendar Year 1940, Box 30, Folder 11, Item 6,
Marriner S. Eccles Papers.
https://fraser.stlouisfed.org/archival/1343/item/466272, accessed on June 16, 2025.