National Museum of Nuclear Science & History
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Mortimer Schwartz served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
E. H. White worked for the Tennessee Eastman Corporation at the Y-12 Plant.
M. Carey worked for the Roane-Anderson Company.