Complex sentence: Houstoun married Hannah Bryan, whose father, Jonathan, was a wealthy Savannah merchant, they built their home, "White Bluff", about nine miles (14 km) northwest of Savannah.
Split into simpler sentences: Houstoun married Hannah Bryan, whose father Jonathan was a wealthy Savannah merchant. They built their home, "White Bluff", about nine miles (14 km) northwest of Savannah.