National Museum of Nuclear Science & History
M. J. Wheat worked for the Midwest Piping and Supply Company.
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Selma Shupp was a technician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Willis Fred Greene worked at the Y-12 Plant in Oak Ridge, TN during the Manhattan Project.