You wrote:
"I have other data on Robert H. Callen. He and Elizabeth had 5 children before 1830 and at least 2 after 1830. Some have him as the son of Wm Callen Jr.-data from the Court of Pleas and Quarter Sessions of Cabarrus Co July 15, 1805-April 23, 1817 appointed Moses Alexander guardian of Wm's children George, James, William, and Sarah. In 1828, James A. Callen was appointed guardian of Sarah his sister, she being the youngest child. It seems James and family moved to Cherokee, AL including mother and sister Sarah."

I would appreciate any info you have on Robert H. Callen Sr. d. 11 Oct 1834. Assuming the obituary of Ross Callen by his daughter Margaret Farr Callen Glass is accurate, then if RHC is the brother to Ross mentioned as dying, he must also be a son to John K Callen b abt 1765/ Agnes Kerr b abt 1773, since that is the well-documented father to Ross.