National Museum of Nuclear Science & History
Felix Sandoval was a staff worker at Los Alamos during the Manhattan Project.
L. E. Dunkelberger worked at the 200 West Area at Hanford during the Manhattan Project.
Groom worked at the 300 Area at Hanford during the Manhattan Project.
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.
