National Museum of Nuclear Science & History
John Harbin worked for Clinton Laboratories at the X-10 Reactor.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.
