Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application by Marshall and Ilsley Bank Stock Corporation for First National Bank of the City of Superior" in Press Releases of the Board of Governors of the Federal Reserve System
(July 20, 1970).
https://fraser.stlouisfed.org/title/9237/item/698036, accessed on January 20, 2026.