National Museum of Nuclear Science & History
Homer M. O’Callaghan served in the 1st Ordnance Squadron.
Allen A. Birkenkamp served in the 1st Ordnance Squadron.
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.
