GB, I'm beginning to think that the David Waddle of Abbeville, SC, is not WIlliam's father, and not just due to lack of sources for him particularly.
The name David seems to run in this family like the 1916 WNC flood.The David of the estate papers you linked for me are too late for what I'm looking for, but I'm pretty sure he's related somehow.
However, I did find some deed abstracts in the 1700s that place some Waddells in the Steele Creek Community of SW Mecklenburg County. There's a George taking on an orphan in the Jan. Session of the 1806 court, and this George shows up more in the court records than any other Waddell, as well as a James (several mentions), Jane, and Jenny.
I found a will abstract for William H. Waddell (1847) mentioning several children.
Now I'm really confused. I know this is one family, the Mecklenburg one, but I just cannot find out the exact relationship yet. Very frustrating. I'll keep digging.
The assistance is greatly appreciated.