I have FELTs in Essex County, NY. They lived in Elizabethtown and Westport.
Aaron FELT born 21 June 1716 in Rummey Marsh, Lynn MA and died 1769. He married Mary WAITE. They had several children, including Peter, 1745-1817, Joseph 1757-1842, SArah 1760-1826 and Aaron 1742-1801 who went to New Hampshire and settled there. Aaron Jr. married twice. Several of his children went to Essex County, NY including Aaron the III and Abiatha the wife of Jesse BRAMAN; as well as their half-brother, Moses. These three lived either in Westport or Elizabethtown. I know that Jay is close to these towns and in fact at least one of Jesse and Abiatha's children lived there for a while.