National Museum of Nuclear Science & History
John Luttrell worked for the United States Engineer District Office.
H. B. Marcum worked for the Union Carbide & Carbon Corporation.
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. Z. Dolan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. J. Karraker worked for the Tennessee Eastman Corporation at the Y-12 Plant.