National Museum of Nuclear Science & History
Lyman Parratt (1908-1995) was an American physicist. Parratt was born in Salt Lake City. He studied at the University of Utah and earned a Ph.
Jim Johnson was an ordnanceman at Los Alamos from 1944 to 1945. He was born on January 8, 1926, and started work at the Naval Ordnance Test Station at China Lake, Califiornia in 1944.