b'Late 1800s, U. S. Geological Survey, Chatham HarborCourtesy, Maps of AntiquityT his late 1800s chart was one of the early U. S. Government presentations of Chatham.Clearly the fishing fleet had best ocean access from Old Harbor between the U. S. Life Saving Station on Nauset Beach and the Twin Lights close to town.1916, Chatham, Nauset Beach, Monomoy IslandCourtesy, Tiffany A. DoggettT his chart shows Nauset Beach protecting Chatham Old Harbor. Some shoals and beaches continue almost all the way south to Monomoy Island.Monomoy was one, long island with almost 30 families living in Whitewash Village at the Powder Hole (20 pupils in the school).Nearby was the Monomoy Point Coast Guard Lighthouse, then manned by a rowing surfboat crew.1910, Lifesaving StationCourtesy, Chatham (MA) Historical SocietyI n 1925 there were 785 resident-owned houses compared to 406 non-resident houses.By 1937, the increasing use of automobiles forced The Chatham Railroad Company out of business.The modern bridges over Cape Cod Canal were built in the early 1930s, followed 20 years later by the Mid-Cape Highway.6'