Arnold E. Swanson

E. J. Cohen

Anthony J. Matz

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.

R. L. Berndt

Mike Cohen

Mike Cohen worked for the A. S. Schulman Electric Company.