Federal Reserve Bank of Dallas. "[Security Bank and Trust Co., Inc., Dallas, Texas, Newly Organized Nonmember Bank Opened for Business April 30, 1971], Circular No. 71-100," District Notices (Federal Reserve Bank of Dallas) (April 29, 1971). https://fraser.stlouisfed.org/title/5569/item/543226, accessed on January 31, 2025.