National Museum of Nuclear Science & History
Joseph Ryan 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.
Richard F. Taschek (1915-2005) was a nuclear physicist at the Manhattan Project’s Los Alamos facility and the Los Alamos National Laboratory.
Beachley worked for Stone and Webster Engineering Corporation.
James H. Coon was an American physicist. He worked on the Manhattan Project at the University of Chicago’s Metallurgical Laboratory and at Los Alamos.
