National Museum of Nuclear Science & History
Ralph E. Telford worked at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ruth Langley worked for the United States Engineer District Office.
Norene Mann was a secretary at the University of Chicago Met Lab. She worked for Nobel laureate James Franck, but often also acted as a secretary for Leo Szilard.
Cash worked as an operator at the Y-12 plant at Oak Ridge during the Manhattan Project.