National Museum of Nuclear Science & History
Elwin Covey was an assistant and protégé to Glenn Seaborg, and spent most of his time with the Manhattan Project at the X-10 plant in Oak Ridge, Tennessee.
George Miller was a research assistant at the University of Chicago Met Lab. He was present when Chicago Pile-1 went critical on December 2, 1942.
John Streib was a staff worker at Los Alamos during the Manhattan Project.