Headquarters, First U.S. Army, General Orders No. 31 (1 juli 1944).
Bronnen
- Knickerbocker, H.R., Danger Forward – The Story of the First Division in World War II, The Battery Press, Nashville, USA, 2002
- Balkoski, J., Omaha Beach: D-Day, June 6, 1944, Stackpole Books, Mechanicsburg, U.S.A., 2006
- Homeofheroes.com
- Army Medical Department Regiment