This is not my line but I have some information on that family if you need it.
One of the relations posted a family story that he believed his grandfather was a Comanche Indian son of Quanah Parker and Mahcheetawookey who had been adopted by Sanford Francis Yarbrough - a nephew of Sheriff Milt Yarberry.
It is not true. His grandfather was born to John Milton Yarberry (1854-1945) in 1895 in Pueblo Colorado.
Those Yarberrys (Yarbroughs) descend from John Yarbery (1815 TN-1845 AR.
Member of the Quanah Parker Historical Preservation Society