National Museum of Nuclear Science & History
Delbert Ball was a procurement officer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Thomas Trevena worked for the Kellex Corporation at the K-25 Plant.
Philip M. Barnes served as a lieutenant in the 1st Ordnance Squadron. He was the assistant weaponeer on Bockscar during the Nagasaki bombing mission.
E. D. Hughes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Tucker worked for the United States Engineer District Office.