National Museum of Nuclear Science & History
Clark Prather worked for the Kellex Corporation at the K-25 Plant.
Robert Stone was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Hale worked at the 200 West Area at Hanford during the Manhattan Project.
William Cavin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
