National Museum of Nuclear Science & History
Grafton worked in the United States Engineer District Office.
Clyde R. Emery worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dr. Leslie T. McClinton was a research assistant at the University of Chicago Met Lab. After three months of working at the Met Lab, McClinton was transferred to Oak Ridge in 1943.
A. O. Seidel worked for the Asbestos & Magnesia Materials Company.