Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Number of Employees and Amount of Payroll for Representative Establishments," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1921," Federal Reserve Bulletin (May 1921) : 29-29. https://fraser.stlouisfed.org/title/62/item/20523/toc/260853 , accessed on May 9, 2024.