Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of applications of Marshall and Ilsley Corporation for Bank of Watertown and Citizens American Bank" in Press Releases of the Board of Governors of the Federal Reserve System
(April 19, 1972).
https://fraser.stlouisfed.org/title/9237/item/698595, accessed on January 13, 2026.