National Museum of Nuclear Science & History
Long worked for Stone and Webster Engineering Corporation.
Thornburgh worked at the 200 West Area at Hanford during the Manhattan Project.
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.
