National Museum of Nuclear Science & History
George Meacham worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Arthur R. Hanson served in the 320th Troop Carrier Squadron.
Robert Ellingson arrived in Oak Ridge in June 1943. Shortly after Ellingson arrived, however, he was informed by his employer, Tennessee Eastman, that they already had too many chemists and chemical engineers.
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.
