National Museum of Nuclear Science & History
June H. Roberts was a research assistant in the Instruments Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
L. F. Preston worked for the United States Engineer District Office.
Ross H. Johanson served in the 603rd Air Engineering Squadron.
Josephine Hinch was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
