National Museum of Nuclear Science & History
J. T. Holloway worked for the United States Engineer District Office.
Richard J. Dillman served in the 393rd Bombardment Squadron.
H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hugh Barton was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
