B. R. Longwell

S. A. Hindley

S. A. Hindley worked for the J.A. Jones Construction Company.

J.D. Shaw

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.

John B. McKim

John McKim worked for the Kellex Corporation at the K-25 Plant.