National Museum of Nuclear Science & History
R. E. Lee worked for the H. K. Ferguson Company.
John H. Martens was a research associate and chemist at the University of Chicago Met Lab and a member of the Special Engineer Detachment at Oak Ridge.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. B. Dutton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
