National Museum of Nuclear Science & History
G. Z. Barton worked for the Poe Piping & Heating Company.
J. C. Ridenour worked for the Roane-Anderson Company.
Elery M. Groves served in the 1027th Air Material Squadron.
Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
