You posted this query some time ago and you may already have your answer - but I am a descendant of Adam McElrath (1788-1829), who had a son John Augustus (1827-1907), who I have is the father of William Joseph. Adam was the son of a John (2)McElrath, who was also the son of a John (1), There can be found in the 1790 SC census, Spartanburg county, pg 10. Adam had a brother named William (1786-1855). Only the two sons, Adam and William, and John's wife Peggy are mentioned in John's(2) will. I have more if you still need/want it.