National Museum of Nuclear Science & History
Johnson worked for Stone and Webster Engineering Corporation.
William Penney (1909-1991) was a British mathematician and physicist. William Penney’s first assignment of the war was a research position with the Royal Navy, studying collisions, explosions and shockwaves and searching for ways to use hydrodynamics to assist the navy.
Alfanso Sandoval was a staff worker at Los Alamos during the Manhattan Project.
