Complex sentence: A 1947 Maryland Airport Directory listed the airport as having two intersecting grass runways: a north-south strip 2,200 feet in length and an east-west strip 1,800 feet in length.
Split into simpler sentences: A 1947 Maryland Airport Directory listed the airport as having two intersecting grass runways. The north to south strip being 2,200 feet in length, and the east to west strip being 1,800 feet in length.