Complex sentence: He served as a captain and colonel in the Georgia Militia during the American Revolution under the command of his brother-in-law general John Twiggs and represented his home county of Burke County in the Georgia legislature.
Split into simpler sentences: He served as a captain and colonel in the Georgia Militia during the American Revolution under the command of his brother-in-law general John Twiggs. He represented his home county of Burke County in the Georgia legislature.