National Museum of Nuclear Science & History
Frank Vaughan was a research associate at the Chicago Met Lab during the Manhattan Project.
H. B. Smith worked for the United States Engineer District Office.
H. F. Farwell worked for the Roane-Anderson Company.
L. L. Larson worked for Clinton Laboratories at the X-10 Reactor.
John P. Echert served in the 393rd Bombardment Squadron.