National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Logan Emlet was the Director of the Operations Division at the X-10 reactor in Oak Ridge, TN during the Manhattan Project.
C. V. Cannon worked for Clinton Laboratories at the X-10 Reactor.
E. F. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.