St. Peter’s Episcopal Church in Westmoreland County is a Gothic Revival brick building that has been in continuous use since its construction in 1848–1849. The rear addition of 1860 includes a vestry room. It was at this time that the Agnus Dei stained-glass window was added and the pulpits and chancel were changed to their present form, all from plans drawn by Dr. William Wirt. The exposed cross-beamed ceiling and roof were constructed in 1882–1883. Stained-glass windows were also installed then, and the two doors opening from the vestibule to two aisles in the nave were changed to the present single-entry door and center aisle. These changes formed a Gothic gable front with finished moldings and brackets. Norris & Garner, builders and contractors from St. Mary’s County, Maryland, performed this work on the church.  St. Peter’s Episcopal Church was gutted by fire in December of 2023.