Complex sentence: The rector of the church from 1917 to 1928 was The Rev. Henry Sayers, father of the novelist, Dorothy L. Sayers, and he and his wife were buried in unmarked graves in the churchyard at the behest of their daughter Dorothy.
Split into simpler sentences: The rector of the church from 1917 to 1928 was The Rev. Henry Sayers, father of the novelist, Dorothy L. Sayers. He and his wife were buried in unmarked graves in the churchyard at the behest of their daughter Dorothy.