Complex sentence: According to Jenny Franchot, the author of a history of the riots, the lower classes of Boston, predominantly conservative Protestants, came to see the convent school as representing a union between two classes of people, both of which they distrusted.
Split into simpler sentences: According to Jenny Franchot, the author of a history of the riots. The lower classes of Boston, predominantly conservative Protestants, came to see the convent school as representing a union between two classes of people, both of which they distrusted.