National Museum of Nuclear Science & History
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dorothy McKibbin was responsible for welcoming new recruits to the Manhattan Project. Known by many as the “Gatekeeper to Los Alamos,” McKibbin ran the Santa Fe office at 109 East Palace for the Los Alamos National Laboratory during World War II.
Howard Muller was a staff worker at Los Alamos during the Manhattan Project.
