Complex sentence: Frederic Cunningham Lawrence became a priest in 1925 after graduating from the Episcopal Theological School in Cambridge, Massachusetts and became rector of St. Peter's Church there in Cambridge, and later rector of St. Paul's Church in nearby Brookline.
Split into simpler sentences: Frederic Cunningham Lawrence became a priest in 1925 after graduating from the Episcopal Theological School in Cambridge, Massachusetts where he became rector of St. Peter's Church. The Rev. Lawrence was later appointed rector of St. Paul's Church in nearby Brookline.