National Museum of Nuclear Science & History
Desiderio Vigil was a staff worker at Los Alamos during the Manhattan Project.
Sloan worked at the 300 Area at Hanford during the Manhattan Project.
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.
Bretscher worked at Los Alamos during the Manhattan Project.
