National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Leon Cooper served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the bombardier regularly assigned to the B-29 Next Objective.
James Dugger served in the 1st Ordnance Squadron.
Frank J. Fortine served in the Special Engineering Detachment and Project Alberta, the group that transported the first atomic bombs to Tinian Island.
Halm worked at the 300 Area at Hanford during the Manhattan Project.