Inflation and Interest Rates on Government Securities, Box 15, Folder 4, William McChesney Martin, Jr., Papers. Missouri History Museum. https://fraser.stlouisfed.org/content/?item_id=457374&filepath=/files/docs/historical/martin/15_04_nd2.pdf, accessed on May 22, 2018.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources