1919 Map of Setauket

About this map

Port Jefferson and the surrounding north shore harbors of Long Island Sound anchor this 1919 tactical survey. The landscape is defined by its maritime and rail infrastructure, from the deep waters of Port Jefferson Harbor to the inland tracks of the Port Jefferson Branch and the Long Island R.R. stretching toward Patchogue. The map captures a moment when the Motor Parkway was a prominent feature of the central island terrain, cutting through the wooded hills near Lake Ronkonkoma. Significant institutional landmarks like the State Hospital for the Insane at Kings Park and the large State Hospital near Central Islip are clearly delineated. Smaller coastal settlements like Setauket, Stony Brook, and Miller Place maintain their early 20th-century footprints before mid-century suburban expansion transformed the Suffolk County interior.