California Governor Earl Warren examines a soldier's steel helmet while touring a National Guard encampment in July 1948, flanked by Maj. Gen. Curtiss O'Sullivan, Adjutant General of the California National Guard; Col. Oscar Jahnsen, the Governor's military aide; and Maj. Gen. John U. Calkins, commanding the 49th Infantry Division. The visit reflects the state's postwar investment in rebuilding its Guard units, just two years before mobilization for the Korean War. Project: 218645