Complex sentence: Steuart was one of the officers who with Robert E. Lee surrendered to Ulysses S. Grant at Appomattox Court House, and after laying down his arms, spent the rest of a long life peacefully farming in his beloved Anne Arundel County, Maryland.
Split into simpler sentences: Steuart was one of the officers who was with Robert E. Lee when he surrendered to Ulysses S. Grant at Appomattox Court House. After laying down arms, Steuart spent the rest of a long life peacefully farming in his beloved Anne Arundel County, Maryland.