Federal Reserve Bank of Dallas. "[Union Bank, Tucson, Arizona]," District Notices (Federal Reserve Bank of Dallas) (May 13, 1963). https://fraser.stlouisfed.org/title/5569/item/551803, accessed on April 19, 2024.
Federal Reserve Bank of Dallas. "[Union Bank, Tucson, Arizona]," District Notices (Federal Reserve Bank of Dallas) (May 13, 1963). https://fraser.stlouisfed.org/title/5569/item/551803, accessed on April 19, 2024.