National Museum of Nuclear Science & History
Robert Parks worked for the United States Engineer District Office.
E. F. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jane Roberg was an American physicist. She earned a Ph.D. from Duke University and was working at the University of California when she was recruited to work on the Manhattan Project at Los Alamos.
June H. Roberts was a research assistant in the Instruments Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.