National Museum of Nuclear Science & History
Halloran worked in the United States Engineer District Office.
Heater worked at the 100-D Area at Hanford during the Manhattan Project.
Celeste Hand was a switchboard operator at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
Dan Millard was a high school student in Oak Ridge, TN in 1943. The size of the school expanded from 65 to 1200 students due to the influx of workers for the Manhatan Project.