National Museum of Nuclear Science & History
Leslie Ritner was a member of the Special Engineer Detachment at Los Alamos. He was among the first engineers sent to Los Alamos from Camp Claiborne, Louisiana in late January 1944, serving for two years before being discharged in the spring of 1946.
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.
Earl Otto Casey was a Captain in charge of the 603rd, part of the 509th composite. He is also featured in the Wendover Field Museum, Wendover, UT, and the Museum of the Pacific.
