National Museum of Nuclear Science & History
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Robert E. Krug, Jr. served in the 393rd Bombardment Squadron.
L. E. Jameson worked for the United States Engineer District Office.
Dr. Theron G. Finzel was a chemical engineer/chemist. He worked for DuPont, and was asked to help on the Manhattan Project.