National Museum of Nuclear Science & History
Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.
Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.
E. C. Weber worked for Clinton Laboratories at the X-10 Reactor.
C. L. Quast worked for the Kellex Corporation at the K-25 Plant.
