Martin, William McChesney, 1874-1955. Accounts of Family Trips, Box 51, Folder 5, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/scribd/?item_id=456853&filepath=/files/docs/historical/martin/51_05_nd1.pdf, accessed on December 11, 2017.
Index and diary of trips taken between 1919 and 1941.
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources