Cornelius Harrigan

A. H. Blalock

Blalock worked for Stone and Webster Engineering Corporation.

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.

Eldon W. Walt

Eugene G. Szklarz