Volume II of Allan Cunningham’s Paul Jones; A Romance, 1826 (still in the Age of Sail, and less than 50 years after the events ‘novelized’) has the following passages:
He saw John Paul dappled with blood from head to heel, and smeared with gunpowder; a sword in ae hand and a pistol in the other, flying from deck to deck, and crying, with a voice as loud as a carronade, ‘Board, board!’ (29)
When Corbie, waving his cutlass, cried out,—“Board! board!” fifty men were at his back in a moment; and so close were the ships to each other that a score and upwards leaped on board without waiting. (162)
“Remember, not a shot must be fired till I give the word; and when I cry, Board! you must board, from the cabin-boy to the captain.” (322-3)
Cunningham was a landsman his entire life, but practiced as a journalist, novelist and popular poet in London at the height of the Napoleonic wars. It is likely that his characters say, if not what sailors of the day actually said, what a novel-reading public avid for tales of nautical derring-do expected them to say.