Thank you for taking the time to pull that up. I have them from the 1880 census on. I'm hoping to find them before they came to TX. If Thomas Sr is the same as in the 1867-69 voter registration, he first came to TX around 1855.
The 1880 census aside, I still think it likely Thomas Jr (and possibly others) were born in Asheville (later birth certificates of his children finally gave me a town and county).