National Museum of Nuclear Science & History
P. D. Simpson worked for the Poe Piping & Heating Company.
Austin M. Brues (1906-1991) was the Director of the Biology Division at the Manhattan Project’s Chicago location, the Metallurgical Laboratory (Met Lab).
James Gordon was an electrical engineer working as a civilian contractor for the DuPont Company at the Hanford, Washington site for the Manhattan Project.
