Mason takes command of Operations Published May 5, 2010 GRISSOM AIR RESERVE BASE, Ind., -- Brig. Gen. Dean Despinoy, 434th Air Refueling Wing commander, left, passes the 434th Operations Group flag to Col. William Mason, as he assumes command. Colonel Mason assumed command from Col. Randall Ogden, who transferred to Seymour-Johnson AFB, N.C. Prior to assuming command of the 434th Operations Group, Col. Mason was the commander of the 465th Air Refueling Squadron at Tinker AFB, Okla.(U.S. Air Force photo/Tech. Sgt. Doug Hays)