Hassett, William D., 1880-1965. Letter to Mr. Martin, Box 13, Folder 7, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/archival/1341/item/457229, accessed on November 21, 2018.
Secretary to the President. Regarding Martin's letter to the President about political pressures on the Export-Import Bank
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources