National Museum of Nuclear Science & History
Paul Olivas was a staff worker at Los Alamos during the Manhattan Project.
J. P. Clark worked for the Roane-Anderson Company.
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.
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
