Twenty-five stained glass windows, of a variety of styles both American and foreign, and dating from 1872 to the present brighten the interior of the church. Perhaps the most striking are the five high windows in the chancel. These memorial windows were fashioned by the Wailles of Newcastle-on-Tyne and installed when the church was dedicated in 1872. They signify the important aspects of the life of Christ: his birth, baptism, crucifixion, resurrection, and ascension.

At the north end of the nave is a large four-light window with a vibrant blue background that contains worshipping angels and the shield of the Holy Trinity. This window was concealed by the organ case from 1906 to 2000, and uncovered when our organ was rebuilt.

Windows from the Tiffany studios were installed around the turn of the 20th century. These include seven Old Testament figures in the west transept, and angels in the resurrection garden in the east aisle.

The “parable window” in the west aisle is a favorite of many. It was produced by Capronnier of Brussels and depicts the parables of the prodigal son, the good Samaritan, and the wise and foolish virgins.

The recently restored angel figure in the northeast tower was the work of Philadelphia stained glass window designer Fanny Sweeney. This work is best seen from Walnut Street when it is illuminated at night.