Martin, Cynthia Davis. Account of Trip to Europe, Box 51, Folder 7, William McChesney Martin, Jr., Papers. https://fraser.stlouisfed.org/scribd/?item_id=456855&filepath=/files/docs/historical/martin/51_07_nd1.pdf, accessed on December 12, 2017.
Mrs. Martin accompanied her husband on an Export-Import Bank trip to attend the Monetary Conference in London. September 3-November 7. Year unknown - probably 1947
- Board of Governors of the Federal Reserve System, Federal Reserve Board
- Meltzer's History of the Federal Reserve - Primary Sources