COX, Mary XXX LANGFORD, d 1844

Do you think there's any chance that this Mary was the dau of William GILREATH (mentioned in his 1794 will Newberry Co SC)?

The GILREATHs moved from Newberry Co SC into the Greenville SC area of Enoree River.There are COXes in the area.

Do you know of any association with the PETTYPOOLs of the area (Newberry or Greenville)?

Do you know where William COX lived in Greenville?Was he associated with an Abraham POOLE with gristmill who mentions a tract from a William COX?
http://www.couchgenweb.com/couch/woodfil/spdeeds.htmhttp://www.couchgenweb.com/couch/woodfil/spdeeds.htm

Any comments will be greatly appreciated.