National Museum of Nuclear Science & History
E. J. Risdon worked for the Roane-Anderson Company.
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.
Cecilia was a staff member at Los Alamos during the Manhattan Project.
Gordon Waters was a staff worker at Los Alamos during the Manhattan Project.
