Amos Nettleton - 1737 Killingworth, Conn., USA

I have been trying to find the wife of Amos Nettleton for several years now. I'm hoping somebody in either Killingworth from the District of Brunswick, New York can help me find this elusive person. His wife would probably have been born abt 1741 in Duchess County, New York and died abt 1799 in Augusta Township, Leeds/Grenville County, Ontario, Canada

Any help or advice would be very greatful.

Tim