National Museum of Nuclear Science & History
P. D. Simpson worked for the Poe Piping & Heating Company.
Tom Gary headed the design division at the DuPont Company and served on the committee which decided among the proposed fissionable material production and purification processes.
Arthur Harold Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Johnson worked at the 300 Area at Hanford during the Manhattan Project.
