Photograph of William McChesney Martin Jr., Box 9, Folder 5, William McChesney Martin, Jr., Papers. Missouri History Museum. https://fraser.stlouisfed.org/scribd/?item_id=457032&filepath=/files/docs/historical/martin/09_05_nd2.pdf&start_page=1, accessed on October 17, 2017.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources