Looking for Cornwell IN Essex County New Jersey

I am looking for any information regarding Elijah Cornwell born about 1789 in Essex County. He died in Bethel, Clermont, Ohio in May 1875. He was married to Phebe Edwards born in 1817 also in Essex County, New Jersey. All information on the Cornwell family stops with Elijah. The Edwards have been easy to follow. Is there any information out there?