A 19th Bombrdment Group B-17D being loaded with 100 and 500-pound bombs probably at Del Monte Field, Mindanao, Philippines, early in 1942. Note the Fortress is parked in a rough, dirt area and the early M1917 helmet and pre-war uniform worn by one of the ground crew indicating the photo was taken in a combat area in the first few weeks of the war.
United States Army Air Corps
1942
USAF Historical Research Agency via B-17 Flying Fortress Units of the Pacific War, Osprey Publishing; First Edition edition (April 20, 2003) ISBN: 1841764817