National Museum of Nuclear Science & History
Hayes worked at the 300 Area at Hanford during the Manhattan Project.
Kelleher worked for Stone and Webster Engineering Corporation.
Ellis Steinberg was an American Chemist. He was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Robert R. Williamson was a laboratory assistant and computer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
