I'm interested in the Campbell County Tennesse Elihu Wilburn (b.1842, d.1914) and his wife Isabelle Walden (maiden name) (b.1839, d.1918). I have Isabelle's death certificate listing her parents as John Walden and her mother as Susan Campbell. However, our family recollects that Isabelle was half Cherokee. Any information on this line, especially Isabelle's history, would be appreciated.