National Museum of Nuclear Science & History
R. W. Addington worked for the J.A. Jones Construction Company.
Lt. Col. Clyde Mathews was a Public Relations Officer during the Manhattan Project. He worked for Lt.
Egon Bretscher (1901-1973) was a chemist and nuclear physicist and was involved in the British atomic bomb effort.
James Jensen was a machinist at Hanford, Washington from September 1944 to the end of the war. Jensen's security clearance allowed him to machine parts and complete various tasks for the maintenance of the nuclear piles.