An abandoned cemetery on a slender rise in Staten Island, one of New York City’s five boroughs, has many names. The city’s Landmarks Preservation Commission called it the Sleight Family Graveyard when it designated the parcel a landmark in 1968. The earliest gravestone is for Jacob Sleight, who died on June 20, 1751, which may explain the nomenclature. Other early settlers of the island and their descendants are interred here—the Seguine family makes up around half of the graves—and the burial ground has been referred to by other family names….