National Museum of Nuclear Science & History
Robert Hobart worked for the United States Engineer District Office.
George W. Campbell was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
George R. Carlson was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. W. Pardon worked for the Roane-Anderson Company.
