National Museum of Nuclear Science & History
W. A. Cone worked for the J.A. Jones Construction Company.
J. G. LeSieur, Jr. worked for the United States Engineer District Office.
Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Mary Fair worked as a lab assistant at the Metallurgical Lab at the University of Chicago. She was not sure of the purpose of her work, but often used radiation detecting devices in the experiments.
