National Museum of Nuclear Science & History
Helen Atchley worked at the Y-12 Plant during the Manhattan Project. She and her best friend, Dorothy Stinnett, are both pictured in Ed Westcott’s famous photograph of people going to work in the Y-12 Plant.
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
