That is a great question and my assessment as well. To date I have not found any definitive source as to who exactly were the parents of Edward. What we do know, at least from the 1850 Georgia Census for Tattnall County is that Edward was born about 1776 in NC, and likely moved into GA around 1800. Beyond that the mystery as to who were Edward's Father and Mother remains open.
Edward Sr. was my GGGGreatfather. One of his son's was Edward Jr. who was married to Mary Mattox.