National Museum of Nuclear Science & History
W. H. McEachern worked for the Fercleve Corporation.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
W. R. Perret worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. W. Llewellyn worked for the United States Engineer District Office.
