As wiki said: "Led the in the Battle of Derna on April 27, 1805, giving the Marines' Hymn its line “to the shores of Tripoli†and was given a sword that became part of the officer uniform"... Imagine that is why he is reknown in the USMC
Very difficult to recognize him on the portrait : )
Edit: Of course not the first to answer.... You're fast guys
Lt. Presley Neville O'Bannon, it is. Joequ1oeil, wins on a technicality, he also indicated what Lt. O'Bannon was famous for. Well done. Kudos to Numberz for correctly identifying him first.