#OnThisDay 1942 Lt Cmdr Edward ‘Butch’ O’Hare became the @USNavy‘s first flying Ace when he singlehandedly shot down five Japanese bombers. For this he was awarded the Medal of Honor. Chicago Airport is named in his honour. O’Hare was of Irish descent. O’Hare’s father was a lawyer for Al Capone and eventually helped convict Capone of tax evasion. O’Hare senior was gunned down by Capone’s men in Novermber 1939.