I am also working on the parents of Thomas Scott married to Anna Cowhick. I have his name as Thomas C. SCOTT.
The Scott family I am working on is that of James SCOTT married to Mary Cowhick (Anna's sister).
I am wondering if Thomas could be of this family because his oldest son was named Benjamin Welcome SCOTT and Benjamin is the name of James Scott's father and Welcome is the name of James' mother's (Eleanor HODGES) father - Welcome William HODGES. I do not believe he is a brother to James, as Benjamin Terry SCOTT died in 1799. He could be a nephew, as James had at least two older brothers.
I would be interested in what you think and if this information overlaps with yours. I do have some basic COWHICK information, as well as the SCOTT Family back another generation beyond Benjamin.