Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of applications by Brenton Companies, Inc., for Brenton State Bank, Jefferson State Bank, First National Bank of Perry, and Poweshiek County National Bank of Grinnell" in Press Releases of the Board of Governors of the Federal Reserve System
(September 27, 1960).
https://fraser.stlouisfed.org/title/9237/item/697040, accessed on January 15, 2026.