Paul Marcello accepted the historian position Jan. 31, 2011, for the 28th Bomb Wing, Ellsworth Air Force Base, S.D. His grandfather trained at Ellsworth during World War II to become a flight engineer with the 100th Bomb Group in England, whose B-17s are depicted in the art over his right shoulder. (U.S. Air Force photo/Tech. Sgt. Nathan Gallahan)