National Museum of Nuclear Science & History
Julia Mangan worked for the A. S. Schulman Electric Company.
Gertrude Williams worked for the United States Engineer District Office.
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.
A. A. Nickman worked for the Kellex Corporation at the K-25 Plant.
