From all I've read (message boards, Turnbo's tales, Marion Co, AR genealogy web site), I am inclined to believe that my Cokers may be descended from this line but I have been unable to document a connection. My great-grandfather, George W. Coker, lived in Yellville, Marion Co., AR until around 1909 when the family moved to Joplin, MO. He was married to the former Anna Stinnett. His sister, Lettie Coker, married Thomas Stinnett, and another sister, Lizzie/Elizabeth Coker, married Tom and Anna's brother, John Stinnett.
George's death certificate only provides his mother's name - Margaret Weast. Lettie's d/c has Margaret Weast as her mother and George W Coker as her father.
I am interested in Joseph Coker not only because of his connection with Native American women but also because one of the histories said he had children by an African American housekeeper. Oral family history claims black, Native and white blood on the Coker side; and white and Native on the Stinnett side.
I would be interested in contacting anyone else who is pursuing this line of inquiry or who could provide more pointers that would lead me to more definitive information.