National Museum of Nuclear Science & History
Ernest Capell worked for the Poe Piping & Heating Company.
Chalgren worked at the 200 West Area at Hanford during the Manhattan Project.
A. R. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
