Archie D. Massey

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.

K. R. McKenzie

I. K. Harris

Harris worked at the 300 Area at Hanford during the Manhattan Project.

H. H. Dent