Complex sentence: The school's movement toward becoming a coeducational facility was at the request of the Bishop of Savannah, and the first coeducational graduating class included 16 boys of 46 total graduates in 1963.
Split into simpler sentences: The school's movement toward becoming a coeducational institution was at the request of the Bishop of Savannah. The first coeducational graduating class included 16 boys of 46 total graduates in 1963.