Yes, I have some info. As I said, it's not right at hand. They are brothers- and 'activists', protesting against a State-run church. The Mayflower group (Pilgrims) must not be confused with the later 'Puritans' who landed in Salem.
Edward also protested against the laws and persecution of the Quakers who came later still. He incurred fines for his speaking out, but they (the establishment) couldn't do without him, so he maintained his place of leadership in the colony.