Snyder, John W. (John Wesley), 1895-1985. Letter to Honorable William McC. Martin, Jr., Box 16, Folder 1, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/content/?item_id=456825&filepath=/files/docs/historical/martin/16_01_19491220.pdf, accessed on May 24, 2018.
Personal letter thanking him for service.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources