Complex sentence: Today, a post office and elementary school still operate in La Grange as well as the oldest church in Stanislaus County, St. Louis Roman Catholic Church, whose cemetery contains tombstones dating to the mid 1800s.
Split into simpler sentences: Today, a post office and elementary school still operate in La Grange. Also functioning is the oldest church in Stanislaus County, St. Louis Roman Catholic Church, with a cemetery containing tombstones dating to the mid 1800s.