This primary source comes from the Records of the Office of the Chief of Engineers, 1789 - 1999.
National Archives Identifier:
519393Full Citation: Enola Gay After Strike at Hiroshima, Entering Hard-Stand; 8/6/1945; Records of the Office of the Chief of Engineers, 1789 - 1999, Record Group 77. [Online Version, https://www.docsteach.org/documents/document/enola-gay-after-strike-at-hiroshima-entering-hardstand, May 2, 2024]