National Museum of Nuclear Science & History
W. N. Oaks worked for the Roane-Anderson Company.
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.
L. L. Larson worked for Clinton Laboratories at the X-10 Reactor.
Chellberg worked for Stone and Webster Engineering Corporation.
