National Museum of Nuclear Science & History
Givan worked at the 300 Area at Hanford during the Manhattan Project.
Alfred Wrzesienski served in the First Ordnance Squadron.
Gerald F. Smith served in the Special Engineer Detachment at Los Alamos, NM 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.