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.
Otto Schendel worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Arthur Scott Weygandt was a chemical engineer at DuPont.
Earl W. McCoy served in the 1st Ordnance Squadron.