National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
Robert Nobles (1917-2007) was an American physicist who worked on the Manhattan Project at the University of Chicago with Enrico Fermi.
Calvin G. Siegle served in the 1027th Air Material Squadron.
L. B. Howell worked for the Tennessee Eastman Corporation at the Y-12 Plant.