National Museum of Nuclear Science & History
E. H. Grey worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jane Heydorn was a Manhattan Project WAC and electronics technician, who helped to develop bomb-testing equipment at Los Alamos.
Gaffney worked in the United States Engineer District Office.
Lorraine Barbic was a technical worker in the Chemical Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.