National Museum of Nuclear Science & History
G. W. Johnson worked for the Edenfield Electric Company.
Mary Johns worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James Barton worked as a carpenter for the DuPont Company at the Hanford, Washington site. He never knew he was working on the atomic bomb until after it was dropped in Japan.
B. Cogswell worked for the Tennessee Eastman Corporation at the Y-12 Plant.