I have a different version of the ancestry of Samuel Overton Pettus who died in the Texas Revolution. My version is based upon original records (not secondary sources) I found in various repositories and sent me by other researchers, notably Brenda Perkins.
Working from SOP backwards:
SOP was the son of Hugh Pettus and his wife Barbara W. Price, both of Louisa County, Virginia.
Hugh was the son of Samuel Overton Pettus of Louisa County, Virginia and his wife Amydiah Duke. This SOP was one of two who fought in the Revolution. The other was from Mecklenburg County, Virginia. The Mecklenburg County SOP was the father of Freeman Pettus and William Pettus who went first to Alabama and then to Texas. They were not the sons of Hugh Pettus!
SOP of Louisa was the orphan son of John Pettus of Louisa (d. 1770) and his wife, whose name is not on record.
The identity of John's father is uncertain, due to the extensive loss of court records for Tidewater Virginia counties. I have a theory that I plan to publish in my forthcoming book.
As for SOP of Mecklenburg County, he was already married to Hannah [--?--] in 1777. So far as I know, there is no record that he married a Jane Freeman, although he give a daughter that name.
SOP was the son of Thomas Pettus of Lunenburg County, Virginia, and his wife Amey Walker.
Thomas was the son of John Pettus and his wife Ann [--?--]. The identities of John and Ann have been the subject of much controversy over the past century. Again, I have a theory that I plan to publish in my forthcoming book.