Federal Reserve Bank of Dallas. "Correction: New Member Bank, Circular No. 81-153," District Notices (Federal Reserve Bank of Dallas) (July 28, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541335&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810728_no81-153.pdf&start_page=1, accessed on September 24, 2017.
United National Bank of Plano Incorrectly Reported as First National Bank of Plano in Circular No. 81-148, Dated 7-21-81.