Complex sentence: In 1875, a house was built next to the cemetery for use by the cemetery director; but during the 1980s, directors were opting to commute to the cemetery, and the house was renovated for use as the cemetery's main office and visitor center.
Split into simpler sentences: In 1875, a house was built next to the cemetery for use by the cemetery director. During the 1980s, directors were opting to commute to the cemetery, and the house was renovated for use as the cemetery's main office and visitor center.