Ezekiel Kelley of Southern Ohio

I am looking for any info concerning my g-g-g-grandfather Ezekiel Kelley born in Maryland 1770. Married Catherine Speck b. 1772 in PA. Cannot find any info on Ezekiel prior to coming to southern Ohio est 1797. Census say he was born in Maryland. Any information concerning Ezekiel would be greatly appreciated. I have info after coming to Ohio but nothing prior to that. Thank you.