Complex sentence: John Murray (1741--1815), who had to leave the Methodist Church because of his Universalism, came to New England in 1770 and is credited with being the Father of Universalism in North America.
Split into simpler sentences: John Murray (1741--1815) was forced to leave the Methodist Church because of his Universalism. In 1770, he came to New England and is credited with being the Father of Universalism in North America.