National Museum of Nuclear Science & History
McDonald worked in the 200 West Area at Hanford during the Manhattan Project.
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.
Robert L. Butenhoff worked in the Instrument and Physical Measurements Group in Clinton Laboratories at the X-10 Reactor.
Martin Kamen (1913-2002) was a Canadian-American physicist. Kamen was seemingly destined for a landmark career in physics when he arrived at the Radiological Laboratory at the University of California, Berkeley in 1936.
