This primary source comes from the Records of the Office of War Information.
National Archives Identifier:
535543Full Citation: 'Staff Sgt. William Accoo..., crew chief in a Negro group of the 15th U.S. Air Force, washes down the P-51 Mustang fighter plane of his pilot with soap and water before waxing it to give it more speed; ca. 9/1944; Records of the Office of War Information, Record Group 208. [Online Version, https://www.docsteach.org/documents/document/staff-sgt-william-accoo-crew-chief-in-a-negro-group-of-the-15th-us-air-force-washes-down-the-p51-mustang-fighter-plane-of-his-pilot-with-soap-and-water-before-waxing-it-to-give-it-more-speed, May 9, 2024]