National Museum of Nuclear Science & History
Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.
Curtis T. Barker served in the 1st Ordnance Squadron.
Popovi Da was the son of Pueblo potter Maria Montoya Martinez and a veteran of the Manhattan Project.
