This primary source comes from the Collection HST-OFF: Official Files (Truman Administration).
Full Citation: Memorandum with Summary of Letter Protesting Committee on Civil Rights and the Committee on Higher Education; 12/29/1947; President's Committee on Civil Rights, OF 596a; Official Files, 1945 - 1953; Collection HST-OFF: Official Files (Truman Administration); Harry S. Truman Library, Independence, MO. [Online Version, https://www.docsteach.org/documents/document/memo-files-letter-protest, April 20, 2024]