National Museum of Nuclear Science & History
T. A. Smith worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thelma worked at Los Alamos during the Manhattan Project.
Roy W. Carlson was an engineer. He worked on the Manhattan Project at Los Alamos and the University of California, Berkeley, as a member of the Explosives Division and Group X-2A.
Grace Wallace worked for the United States Engineer District Office.