National Museum of Nuclear Science & History
R. O. Mitchell worked for the Roane-Anderson Company.
R. S. Stone worked for Clinton Laboratories at the X-10 Reactor.
William Dunnagan served in the 603rd Air Engineering Squadron.
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.