The following data is extracted from Genealogy and Biography of Ontario County, New York.
William, son of Thomas Ottley, was born in Seneca, New York, and followed farming in Seneca Castle, New York. He married, December 17, 1835, Eliza Gates. Children, born at Seneca Castle: Benjamin F., October 17, 1836; Allen P., March 28, 1838, married Calista Marsh; Eliza Ann, June 24, 1840, married Palmer Ray; Harriet E., October 30, 1842; Martha Jane, December 5, 1844, married Charles Williams; Thomas D., February 3, 1847, married Nellie Froman; Emma A., November 25, 1849, married Albert Ridley; George W. mentioned elsewhere; James M., March 22, 1854, married Anna Hollist.
Source: Genealogy and Biography of Ontario County, New York