National Museum of Nuclear Science & History
M. T. Payne worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Melvin S. Friedman was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hayes worked in the United States Engineer District Office.
