National Museum of Nuclear Science & History
Marceil Roberson worked for the H. K. Ferguson Company.
John L. Kuranz (1921-1995) was an American engineer, physicist, and inventor. During the Manhattan Project, Kuranz was a member of the Special Engineer Detachment at the University of Chicago Met Lab.
R. H. Waddle worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.