John L. O’Gara

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.

Frank R. Goodman

Goodman worked in the United States Engineer District Office.

J. E. Benham

E. C. Werner