National Museum of Nuclear Science & History
Barrett worked for Stone and Webster Engineering Corporation.
C. L. Quast worked for the Kellex Corporation at the K-25 Plant.
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Norma Gross was an American chemist. She was married to an Army lieutenant who was stationed at Los Alamos during the Second World War.