National Museum of Nuclear Science & History
Alice Martin was a laboratory assistant in the Chemistry Division at the University of Chicago Met Lab.
W. L. Thaggard worked for Clinton Laboratories at the X-10 Reactor.
W. W. Johnson worked for the Kellex Corporation at the K-25 Plant.
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.