National Museum of Nuclear Science & History
J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.
Johnson worked at the 200 West Area at Hanford during the Manhattan Project.
Jas Curran worked for Hanley & Company.
Warren Poppino Spencer (1898-1969) was an American geneticist who studied low-dosage radiation as part of the Manhattan Project at the University of Rochester.