Emminger Family PA to Ashland Ohio

Looking for info on Abraham EMMINGER born 1790 & died 1870 at Ashland County Ohio. He was married to Anna (last name unknown)they had the following children; Catherine, Susanna, Abraham Jr., John, Andrew, George, Conrad & Henry. I believe that Abraham Sr.'s parents were Johannes "John" & Catherine Emminger of Cumberland Co. PA, but no documentation to prove this theory. Any help would be much appreciated.