National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Philip Vincent was a research associate at the Chicago Met Lab during the Manhattan Project.
B. Roswell Russell worked at the Metallurgical Laboratory in Chicago during the Manhattan Project. He was one of seventy signers of the Szilard Petition.
Phyllis Smith worked for the H. K. Ferguson Company.
