Complex sentence: Wathen ultimately retired from London to Dorking, Surrey where his son-in-law John Eckersall owned Burford Hall, and later he removed to Wrington, Somersetshire, where another son-in-law Rev. William Leeves was rector of All Saints Church.
Split into simpler sentences: Wathen ultimately retired from London to Dorking, Surrey, where his son-in-law, John Eckersall, owned Burford Hall. He moved later to Wrington, Somersetshire, where another son-in-law, Rev. William Leeves, was rector of All Saints Church.