Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Cullen Bankers, Inc., for Cullen Center Bank and Trust and Citizens National Bank of Dallas" in Press Releases of the Board of Governors of the Federal Reserve System
(March 31, 1975).
https://fraser.stlouisfed.org/title/9237/item/700055, accessed on January 15, 2026.