Aerial view of Ford Island, Pearl Harbor, Territory of Hawaii, circa mid-to-late 1920s, showing the approximate boundary between the U.S. Navy and the U.S. Army bases. The flying field, thought owned by the Army, was used by both services.
U.S. Navy
Official U.S. Navy photo <a rel="nofollow" class="external text" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-95000/NH-95537.html.html">NH 95537</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a> (From "Appendix to congressional hearings concerning an investigation of the problem of the control of aircraft for seacoast defense," p230 1/2, issued circa 1929, held by AR Branch, 1985)