Am now very unsure if James Harwell is the son of John and Sarah Stewart. That information came from Tracie.
Tracie thought the parents of James H. Stewart were John and Sara Stewart But . . .
In 1870, a James H(age 50) and Mary Stewart with the right children, including Hartwell lived near
the widow of John B Stewart, Sarah Stewart (age 40 or 48). who had children Indiana, Eliz, John William, M something, and Mary F (who married James Hinley Hicks)
I think she had place James H, in that family when he was probably a uncle, maybe a brother of John B.