Eisenhower moved to Normandy and set up an advance command post on the morning of 7 August 1944. See: Ambrose, Stephen E. (1997). Citizen Soldiers. Simon & Schuster. ISBN0-7434-5015-9., p. 92.
Forrest C. Pogue European Theater of Operations: The Supreme Command, Appendix C, Roster of Key Officers SHAEF United States Army in World War II via Hyperwar Foundation.