Bennion's first assignment after graduation was on the in the engineering division. Subsequently, he was an ordnance and
gunnery specialist serving in the Ordnance Bureau at
Washington Navy Yard during
World War I. Bennion's first command was the destroyer , followed by command of Destroyer Division One. He assumed command of the USS
West Virginia on July 2, 1941. Bennion was
killed in action during the
Japanese attack on Pearl Harbor, December 7, 1941, while in command of the battleship . He was mortally wounded by a
shrapnel shard from the nearby after she was hit by a bomb. Mess Attendant Second Class
Doris Miller and several other sailors attempted to move Captain Bennion to a first aid station, but he refused to leave his post, eventually ordering his men to leave him and save themselves. Using one arm to hold his wounds closed, he
died from loss of blood while still commanding his crew. Bennion was
posthumously awarded the
Medal of Honor. Bennion is buried in the
Salt Lake City Cemetery. On July 4, 1943, the
destroyer , named in his honor, was christened by his widow. == Awards and honors ==