National Museum of Nuclear Science & History
R. H. Ball worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Irving Bubos was a research assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
Edward A. Ryan Jr. served in the First Ordnance Squadron.
Helen Pellock (1926-1957) was a technician in the Chemistry Division of the Chicago Met Lab, working under Glenn Seaborg.