Howard Nacht

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.

Sarah Dowson

Sarah Dowson was married to nuclear chemist Rene Prestwood. She worked as a nurse at Los Alamos.

G. R. Jessen

Jessen worked at the 100-F Area at Hanford during the Manhattan Project. 

H. S. Langley