Martin, William McChesney. Draft of Speech, Box 22, Folder 6, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/content/?item_id=457263&filepath=/files/docs/historical/martin/22_06_19640109.pdf, accessed on May 27, 2018.
Possibly for testimony before Congress.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources