Board of Governors of the Federal Reserve System (U.S.), 1935-. "Public hearing scheduled on the application by First Oklahoma Bancorporation, Inc., for First National Bank and Trust Company of Oklahoma City and Idabel National Bank" in Press Releases of the Board of Governors of the Federal Reserve System
(April 12, 1962).
https://fraser.stlouisfed.org/title/9237/item/697118, accessed on September 12, 2026.