United States. Federal Open Market Committee. 1955-1956: FRB Open Market Committee, Box 20, Folder 12, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/scribd/?item_id=472998&filepath=/files/docs/historical/martin/martin_s05_a_20_12.pdf&start_page=1, accessed on October 17, 2017.
Letters from FOMC members, drafts of minutes
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources