Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Map of the Federal Reserve Districts," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1920," Federal Reserve Bulletin (March 1920) : 131-131. https://fraser.stlouisfed.org/title/62/item/20599/toc/116026 , accessed on May 10, 2024.