National Museum of Nuclear Science & History
M. E. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Welch worked at the 200 West Area at Hanford during the Manhattan Project.
Harry Young worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Norman F. Modine was a research assistant at the University of Chicago Met Lab. He was a signer of the Szilard petition.