Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of applications of First National Bank in Dallas and First National Securities Company in Dallas to retain shares of Citizens State Bank of Irving and De Soto State Bank" in Press Releases of the Board of Governors of the Federal Reserve System (December 11, 1972). https://fraser.stlouisfed.org/title/9237/item/698873, accessed on January 15, 2026.