Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "All Banks in the United States - Number of Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1939," Federal Reserve Bulletin (April 1939) : 67-67. https://fraser.stlouisfed.org/title/62/item/21012/toc/186815 , accessed on March 29, 2024.