National Museum of Nuclear Science & History
R. F. Perkins worked for the Union Carbide & Carbon Corporation.
David Gurlinsky was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. J. Peyton worked for the United States Engineer District Office.
L. F. Hemphill worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. H. Ray worked for Clinton Laboratories at the X-10 Reactor.