Irvin Winsch

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.

William A. McDonald

Charlotte Serber

Charlotte Serber (1911-1967) was the Los Alamos site librarian and only female group leader of the Manhattan Project.

Billy Rives