National Museum of Nuclear Science & History
R. E. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harlan Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
B. P. Gump worked for the Roane-Anderson Company.
Norman F. Modine was a research assistant at the University of Chicago Met Lab. He was a signer of the Szilard petition.