National Museum of Nuclear Science & History
Samuel Smith was a staff worker at Los Alamos during the Manhattan Project.
Jack Hefner joined the Manhattan Project at Oak Ridge in 1943. Hefner was a reactor engineer and helped supervise the construction of the X-10 Graphite Reactor.
Kline worked for Stone and Webster Engineering Corporation.
Arthur R. Hanson served in the 320th Troop Carrier Squadron.
Attended Case Western Reserve University.
