National Museum of Nuclear Science & History
McCall worked in the 100 F Area at Hanford 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.
Beckwith worked in the United States Engineer District Office.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
