Complex sentence: In 1882, Daniel and Maria Murphy's favourite daughter, Diana Murphy, fell in love with Missouri businessman Hiram Morgan Hill and secretly married him, on account of his being a Quaker and her being from a prominent Roman Catholic family.
Split into simpler sentences: In 1882, Daniel and Maria Murphy's favorite daughter, Diana Murphy, fell in love with Missouri businessman Hiram Morgan Hill. They married in secret, on account of his being a Quaker and her being from a prominent Roman Catholic family.