Complex sentence: Dr. Thurman and Dr. Fisk wrote a formal set of guidelines and goals for the church, and the formal inaugural ceremonies were held in the First Unitarian Church, the only white church in the City that would lend its endorsement and its sanctuary for the event.
Split into simpler sentences: Dr. Thurman and Dr. Fisk wrote a formal set of guidelines and goals for the church. The formal inaugural ceremonies were held in the First Unitarian Church, the only white church in the City that would lend its endorsement and its sanctuary for the event.