National Museum of Nuclear Science & History
Hoyt Nelson worked for Clinton Laboratories at the X-10 Reactor.
Graf worked at the 300 Area at Hanford during the Manhattan Project.
Lee Krejci worked for the United States Engineer District Office.
Sergeant Abe Spitzer was a radio operator who witnessed both the bombings of Hiroshima and Nagasaki. He served as the radio operator for The Great Artiste, which served as the blast measurement instrumentation aircraft during the Hiroshima bomb mission.