There was a Gilgo Inlet in 1860 and probably earlier. Most references cite the following as the name source: GILGO BEACH: According to an old legend, a family named Burch lived on the mainland south of Gilgo Inlet. They had a son, famous for his prowess as a fisherman, and called Gill Burch. When neighbors wanted to make sure of a good catch, they would decide to go where "Gill goes." Additional information and some nice photos can be found at: <http://www.gilgo.com/Origin.html> Stu