First, the material I copied at Family History Library in Salt Lake, was "A History of Our Cain Family of Virginia, Alabama and Tenessee" by Stith Malone Cain written in 1970.
When I was in NC Archives about 2 years ago and found Isham in the 1830 Bladen County census, the genealogy librarian found for me much typescript about a James Cain, Sr., from Bladen County. My time was growing short so I copied this information. Some is not very legible. But the James Cain, Sr., had a will dated 8 July 1826; wife named Elizabeth "Betty": Children named Ann, James Jr., Sarah, William, Samuel, Jonathan, Elizabeth, Mary and Martha. No Isham in any of the family groups. This James, Sr., is son of William Cain and Olive Regan Cain. I've wondered if he were connected - perhaps a first cousin - to James, Sr., father of Isham, who was living in the 1830 census. And I have not been privileged to return to the 1830 census for Bladen County to see whether the two families were living any where close together.
Thanks for your help.
Martha Tootle Cain