National Museum of Nuclear Science & History
Clarence Francis Hiskey (1912-1998) was an American chemist and Soviet spy. He worked at Columbia University and the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Niels Thude was a staff worker at Los Alamos during the Manhattan Project.
Leamon Babb was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
