Need help getting past wall: Nathan Smith, born 13 Sep 1786 prob. in Chester, Pennsylvania

I need some advice on finding the parents of Nathan Smith:

Born: 13 Sep 1786 - , probably Chester, Pennsylvania
           Died: 19 Feb 1844 - Blue Rock, Muskingum Co., Oh

         Buried:  - Gaysport Cem., Muskingum Co., Oh
            AFN: 1SXS-ZH0

He married Susan Howard

Here are some links for him:

http://slidetrip.com/nathan_smith/f8.html

audio presentation:

http://www.slidetrip.com/contact/

Download a GEDCOM file of this data (53504 bytes)

Thank you for any assistance you can give.