I am the daughter of the John Greene Austin, Jr. you corresponded with. I'm sorry to tell you that my father died in 1998 and I am only just now taking up the challenge to do more research.
I have a story of Cordelia told to me by my father, that her mother Mary was an Indian (tribe unknown) who worked as a housekeeper for Dr. Elliott, then in partnership with Dr. Justice. When Dr. Elliott moved on, he "gave" her, my father's words, to Dr. Justice and that's how the Justice connection came about. This Indian ancestry has not be verified and I would be grateful for any more information. Cordelia herself, apparently never talked about it and my late father knew her well.
I would be interested to know more about the "other" Cordelia Elliott Justice mentioned in this thread and happy to share what little I know.
As I understand, there are only two descendents of Cordelia Eliott Justice Austin; myself and one female cousin. Alas, neither of us have children.
Jackson Rutherford Austin (1865-1891) m Cordelia Eliott Justice (c1866-1958)
1. John Greene Austin, Sr. (1885-1966) m Modell (Semolia Odell) Maund (1900-1991)
1.1 John Greene Austin, Jr. (1928-1998)
1.2 One child, living
2. Bama (1886-1960). She married several times but had no children.
3. Richard Walton (1889-1971) m Mary Jewell Campbell (1893-1973)
3.1 One child, living
4. Dove (c1890-1917) Died in an cholera epidemic in Saylersville, Kentucky where her brother John Greene was teaching in a Mountain Mission School.