National Museum of Nuclear Science & History
R. F. Ridgeway worked for the Roane-Anderson Company.
Walt Simon, a chemist, was Hanford’s first Operations Manager. Before joining the Manhattan Project, he was plant manager at Wabash River Ordnance Works, a DuPont plant near Terre Haute, Indiana.
B. Roswell Russell worked at the Metallurgical Laboratory in Chicago during the Manhattan Project. He was one of seventy signers of the Szilard Petition.
D. R. Keyes worked for the A. S. Schulman Electric Company.
