Susan d'Olive Mozena, the daughter of deceased World War I flying ace U.S. Army Air Service 1st Lt. Charles d'Olive, presents a picture of her father and the mechanics of his SPAD S.XIII biplane fighter to U.S. Air Force Col. Casey Cooley, 307th Maintenance Group commander, at the 93rd Bomb Squadron headquarters on Barksdale Air Force Base, Louisiana, May 18, 2019. 1st Lt. d'Olive was assigned to the 93rd Aero Squadron, which the 93rd BS traces its history and lineage back to. The 93rd BS receives maintenance support from units within the 307th MXG. (U.S. Air Force photo from Senior Airmen Maxwell Daigle)