National Museum of Nuclear Science & History
Carl Kaddatz served in the 1st Ordnance Squadron.
I. J. Pardee worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
H. O. Ramey worked for the Tennessee Eastman Corporation at the Y-12 Plant.
