This primary source comes from the Collection HST-DKN: David K. Niles Papers.
Full Citation: Memorandum, David K. Niles to Harry S. Truman; 4/11/1946; Civil Rights and Negro Affairs, 1936-1952: 1945-June, 1947 [1 of 2] ; Civil Rights and Minorities Files, 1927 - 1952; Collection HST-DKN: David K. Niles Papers; Harry S. Truman Library, Independence, MO. [Online Version, https://www.docsteach.org/documents/document/memo-david-niles-harry-s-truman, April 27, 2024]