National Museum of Nuclear Science & History
Ray worked at the 100-F area at Hanford during the Manhattan Project.
Ruth Rottman was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Smith worked for Stone and Webster Engineering Corporation.
