National Museum of Nuclear Science & History
H. A. McFadden worked for the Roane-Anderson Company.
Nelle Gaddy worked for the J.A. Jones Construction Company.
Frederick E. Brown served as a sergeant in the 393rd Bombardment Squadron. He was the assistant engineer/scanner regularly assigned to the B-29 Some Punkins.
John F. Van Doren worked on the procurement and property staff at the Metallurgical Laboratory in Chicago during the Manhattan Project.