National Museum of Nuclear Science & History
Robert McCoy worked for the United States Engineer District Office.
Opaline Calhoun was a laboratory technician 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.
Margaret (“Chickie”) Broderick was a chemist at MIT during the Manhattan Project. Broderick was born Margaret McHugh in Boston, Massachusetts in 1921.
Seth I. Smith served in the First Ordnance Squadron.
