Complex sentence: After early appointments in the Quaker-dominated government, after his second marriage, he went into private practice in 1757 and the following year joined the Anglican Church, beginning a separate path to influence outside the Quaker elite.
Split into simpler sentences: After early appointments in the Quaker-dominated government, following his second marriage he went into private practice in 1757; the following year joined the Anglican Church. He was taking a separate path to influence outside the Quaker elite.