National Museum of Nuclear Science & History
Fred Smith worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ahrens worked at the 100 B Area at Hanford during the Manhattan Project.
George I. Ray worked for the G.G. Ray Company.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Paul Tinsley worked for the H. K. Ferguson Company.