Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application by Citizens Bancorporation for Citizens Bank of Sheboygan, North Side State Bank, and Community South Side Bank" in Press Releases of the Board of Governors of the Federal Reserve System
(December 22, 1969).
https://fraser.stlouisfed.org/title/9237/item/697895, accessed on January 20, 2026.