Wow......that helps explain quite a few things. Thank You.
The cemetery in Marshall Co TX had a listing for a Mary Catharine Adair with no dates, and also a Spotswood Adair Sr with no dates.
I'm thinking that Mary Catharine Adair was the grandaughter of Arthur Jones, and possibly that Spotswood Adair was the same person as grandson Jones Adair.
Yesterday I found out that the father of Isabella Octavia Jones was John Nelson Spotswood Jones (1793 VA-1854 AL) of Limestone Co AL, a wealthy man. His name was usally seen as John N.S. Jones. He arrived in the Madison Co AL (Mississippi Territory) about 1811 with his father Llewellyn Jones.
So for some reason it looks like the Spotswood name was carried down into the family of Arthur Jones as well as Llewellyn Jones.