John Summerville of Irish parentage, born 1810, spent most of his long life in Oswego county, NY.First he resided in Granby then in Oswego Falls.He married Harriet b. 1815.They had 2 sons: Wallace b. 1848 in Granby and Fredric b.1856.Wallace in 1875 established a livery stable.He married Rebecca Bradshaw of Oswego Falls. John died after 1894. From 1880 census and John Churchill, Landmarks of Oswego County, NY, pt. 3, p. 291.