National Museum of Nuclear Science & History
Ernest Capell worked for the Poe Piping & Heating Company.
Frederick H. Nelson served in the 1st Ordnance Squadron.
W. H. Griffin worked for the H. K. Ferguson Company.
William O’Brien worked for the United States Engineer District Office.
Ralph Nobles was one of three brothers to work on the Manhattan Project. He and his brother William worked at Los Alamos, while brother Robert was at the University of Chicago’s Metallurgical Laboratory.
