York, John Y., Jr. Memorandum Re: Promotion of Major William M. Martin, Jr., Box 9, Folder 4, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/archival/1341/item/457348, accessed on August 19, 2018.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources