George Ross 1812

George Ross was born 28 Oct 1812 in PA.  In 1837 he married Sarah (Sally) Shellenberger in Trumbull Co, Ohio.  I have no information on George before his marriage.  I don't even know where in PA he was born ands no relatives were ever mentioned or recorded.  Does anyone have information they can share with me?  This line is a HUGE hole in my family tree.