National Museum of Nuclear Science & History
N. C. Parrish worked for the United States Engineer District Office.
Janice E. Kingslow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. A. Pluhar worked for the Union Carbide & Carbon Corporation.
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.
