National Museum of Nuclear Science & History
Swan Swanson was a staff worker at Los Alamos during the Manhattan Project.
Arthur Robert Sayer was a physicist. He had a doctorate from Harvard in Astronomy, and worked on the Manhattan Project at Los Alamos.
Staub worked as a physicist in the Experimental division at Los Alamos 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.