The interior of the church contains many artistic and historical treasures, notably five murals executed by the artist D. Putnam Brinley of New Canaan, Connecticut, and a large painting of the Holy Family by the famous artist Frank Vincent DuMond. The table which forms part of the shrine to St. Paul, on the left-hand side of the chancel, was the altar of the third church edifice; it was built, in Colonial times, as a tavern table. The Lady Chapel has a rare stained glass window circa 15th century (middle window on the side wall), along with other fine examples of English and American stained glass workmanship. The furnishings and fixtures of the church are of the finest quality and add to the beauty of this sacred building.