National Museum of Nuclear Science & History
T. F. Walsh worked for the United States Engineer District Office.
Leonard Reed was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Jose Romero was a staff worker at Los Alamos during the Manhattan Project.
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.