National Museum of Nuclear Science & History
Copeland worked in the United States Engineer District Office.
Theodore Petry (1924-2018) was a laboratory helper at the Chicago Met Lab. He was recruited while still in high school.
Chester J. Krajewski served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
W. H. Leedom worked for the Roane-Anderson Company.