St. Peter's Catholic Church, also known as Brush Creek Church, is a historic Roman Catholicchurch located near Rensselaer, Ralls County, Missouri. The church was built about 1862, and is a one-story, rectangular limestone building with limestone and sandstone ornamentation. It is topped by a gable roof with belfry. It features lancet windows and has a frame two-room addition sheathed in weatherboard.[2]: 2 It is the church on the site where Augustus Tolton, the first ordained African American Catholic priest, was baptized.[3]