National Museum of Nuclear Science & History
Antilla worked in the United States Engineer District Office.
Joe Langston worked for the J.A. Jones Construction Company.
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.
Henry Barwick worked as a plumber, pipefitter, and steamfitter during the building of the Y-12 plant at Oak Ridge.