National Museum of Nuclear Science & History
Carpenter worked at the 200 East Area at Hanford during the Manhattan Project.
E. F. Ryan worked for the United States Engineer District Office.
Uzal Girard Ent was a United States Army Air Forces Officer and Commanding General, Second Air Force, headquartered in Colorado Springs, CO.
James Downey was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
