National Museum of Nuclear Science & History
G. R. Klingman worked for the Roane-Anderson Company.
Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C.
Helen Nemeth was a staff worker at Los Alamos during the Manhattan Project.
William Hackman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
