The following data is extracted from Genealogy and Biography of Ontario County, New York.
John, son of James I. and Anna M. (Freese) Stryker, was born at Sand Beach, Owasca Lake, New York, April 17, 1810, died in 1882. He lived on the farm which had been in his possession for many years, and which he kept in a fine state of cultivation. His interest in public affairs was an active and beneficial one, and he bore his share bravely in the military life of the country, serving as a captain in the New York state militia. He married Maria Garritson, who died in 1869, and they had children : Winfield S., mentioned elsewhere; Ellen F., who married John Salisbury; Anna V., married Charles Peck; Sarah A., married George Case, both deceased.
Source: Genealogy and Biography of Ontario County, New York