John L. O’Gara

Marvin M. Shelley

Marvin Shelley worked for Clinton Laboratories at the X-10 Reactor.

E. Edwards

William S. Hartnett

Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.

Arthur H. Compton

Arthur Compton (1892-1962) was an American physicist and winner of the Nobel Prize in Physics. A top administrator and advisor during the Manhattan Project, Compton played a key role in the making of the atomic bomb.