The President of the United States of America, authorized by Act of Congress, July 2, 1926, takes pleasure in presenting a Fourth Bronze Oak Leaf Cluster in lieu of a Fifth Award of the Distinguished Flying Cross to Captain William Wallace Butler (AFSN: FV-3133430), United States Air Force, for extraordinary achievement while participating in aerial flight as an F-105 Thunderchief Pilot over North Vietnam on 6 October 1967. On that date, Captain Butler was on an assigned mission to attack a high priority military target. Despite poor visibility, intense hostile fire and an unplanned roll-in, Captain Butler’s ordnance was delivered accurately and successfully on target. The professional competence, aerial skill, and devotion to duty displayed by Captain Butler reflect great credit upon himself and the United States Air Force.