Complex sentence: Born in Rockbridge County, Virginia to John Barclay and Elizabeth Stuart Paxton Poague, Poague attended and graduated from Washington College was practicing law in Missouri when the Civil War began.
Split into simpler sentences: Born in Rockbridge County, Virginia to John Barclay and Elizabeth Stuart Paxton Poague, Poague attended and graduated from Washington College. Poague was practicing law in Missouri when the Civil War began.