Mary Katonka Sigmon (Hale) - Tree?

I have tried to confirm that Mary is of Choctaw ancestry, but have not been able to verify. She may have Native American heritage, but it is doubtful she was Choctaw due to the fact of the location of her birthplace. The Choctaw (in the Choctaw language, Chahta) are a Native American people originally based in the Southeastern Woodlands, in what is now Alabama and Mississippi.