National Museum of Nuclear Science & History
C. R. Frazier worked for the Poe Piping & Heating Company.
D. T. Witt worked for the Roane-Anderson Company.
Anthony J. (“Tony”) Matz was a procurement officer at the University of Chicago Met Lab. He helped obtain, handle, and move many of the materials for Chicago Pile-1 and witnessed it going critical on December 2, 1942.
