sentences:  During World War II, he served in the United States Navy from 1941 to 1946, rising to the rank of lieutenant commander in the Naval Reserve.Kemble was a Rockefeller Fellow, 1947–48; Visiting lecturer in history at the University of California, Los Angeles, 1948–49.In 1952–53, he held the academic post at the Naval War College, which the following year was named the Ernest J.