National Museum of Nuclear Science & History
Cleo Wangsness was a staff worker at Los Alamos during the Manhattan Project.
Helen D. Thomson was in the Army Group at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. Niekirk worked for the Roane-Anderson Company.
Ellis Steinberg was an American Chemist. He was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
