National Museum of Nuclear Science & History
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. Niekirk worked for the Roane-Anderson Company.
Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.