My local library can probably get this through interlibrary loan, but they are presently closed for renovations:
Bundy, Vivian Mayo. Supplement to Meet Our Ancestors: Culbreth, Autry, Maxwell-Bundy, Winslow, Henley and allied families. 2nd ed. 1979. Greensboro, North Carolina: Media Inc.
I am looking for the best information on Thomas Maxwell Sr [who died 15 Nov 1827, father of William born 23 Jan 1786, Daniel (1788-21 Jun 1832), and Thomas Maxwell Jr who moved to Cumberland County circa 1806] - both Thomas Maxwell Sr's ancestors and descendants.
It seems a duplicate generation has been introduced in error, and the limited sourcing available doesn't clarify who Thomas Maxwell Sr's father is. FamilySearch seems to have skipped a generation.