Leedy, H. Gavin , Mangels, Hermann N. , Nelson, Fred A. and Wurts, John H. Draft of Report of the Retirement Committee to the Board of Trustees of the Retirement System of the Federal Reserve Banks, Presenting a Program for Integration of Retirement System Benefits with the Benefits Provided Under the Amended Social Security Act, Box 30, Folder 13, Item 10, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/461750, accessed on June 19, 2025.