National Museum of Nuclear Science & History
Edward P. Hayes was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leon Cooper served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the bombardier regularly assigned to the B-29 Next Objective.
T. L. Leahy worked for the United States Engineer District Office.
Herbert E. Lindemann served in the 509th Headquarters and Base Services Squadron.