Much of the original research on James Adams b. 1740 is in the book: Descendants of James and Agnes (Wilson) Adams with Fifty-Seven Allied Families, by Leona Adams Loviska, c1978
It lists the children of Thomas and Mary "Polly" Davis as:
1. Elizabeth b. 20 Jul 1811, m. Benjamin Cornelius 2. Hannah Ramsey b. 1820/21, m. (1) Bradley Stone, (2) Lemuel Brashier
Children of 2nd marriage with Frances Cornelius:
1. Mary Jane b. 19 Jan 1828, m. Gabreal Chrisman 2. Warren Adams, b. 1829 3. Sarah B. b. 1831/2 m. Madison Harbin 4. John b. 16 Apr 1834, m. Polly Adams 5. Missouri Ann b. 1838/9 m. James Dallas 6. charles b. 1840
The book has more data and descendants thangiven here along with biographical sketches and stories for some of the descendants.
One of three theories in the book has Robert and Agnes ___ as parents of James.
The book is still available by the author.Her e-mail address is:
I have some additional info not in the book and would be interested in your connection.I descend from Robert b. 1770 VA, brother to Thomas.