National Museum of Nuclear Science & History
Don Cowen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harold Lichtenberger was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. G. Wells worked for the United States Engineer District Office.
William Gray worked for the Roane-Anderson Company.
Neil Bergen was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
