National Museum of Nuclear Science & History
Hammond worked at the 300 Area at Hanford during the Manhattan Project.
J. L. Hartman worked for the J.A. Jones Construction Company.
Homer M. O’Callaghan served in the 1st Ordnance Squadron.
Attended Ohio State University.
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.