National Museum of Nuclear Science & History
H. L. Huffman worked for the Roane-Anderson Company.
Roland E. Ryder served in the 603rd Air Engineering Squadron.
E. C. Sheets worked for the Fercleve Corporation.
Melvin L. Dietrich worked as a welder and electrician in a number of facilities across the Oak Ridge, Tennessee facility.
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.
