National Museum of Nuclear Science & History
Ralph Berger was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Paul Hartsfield worked for Clinton Laboratories at the X-10 Reactor.
Rupea worked at the 300 Area at Hanford during the Manhattan Project.
Harris Harold Levee served in the Special Engineering Detachment at the Metallurgical Laboratory at the University of Chicago on the Manhattan Project.
