Edward J. Simon

Vaughn Wrenn

Vaughn Wrenn worked for the Roane-Anderson Company.

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.

H. L. Huffman

H. L. Huffman worked for the Roane-Anderson Company.

J.S. Sayer