National Museum of Nuclear Science & History
Duke worked for Stone and Webster Engineering Corporation.
Olney Dean worked for the Kellex Corporation at the K-25 Plant.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marilyn (Evans) Howe was a research assistant in the Technical Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.