Martin, William McChesney. Letter to Arthur L. Hawley, Box 13, Folder 8, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/scribd/?item_id=456874&filepath=/files/docs/historical/martin/13_08_19470813.pdf&start_page=1, accessed on September 24, 2017.
Marshall plan comment
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources