This is information I have for the ancestors of Mary Ann Mobley.
John Wise 1778-1840 m.Judith Ann Lacy >their son Horatio Wise 1818-1900 m. Matilda Mullins >their daughter Sophia Virginia Wise 1847-1926 m.James Edward Ross - Utica, Hinds Co., Ms
>their daughter Alma Ross 1875-1958 m. Isaiah Mobley
>their son Robert Mobley d. 1979 in Vicksburg, Ms m. (1) first wife (name unknown) and that Robert and his first wife were the parents of Mary Ann Mobley. At the time of her Miss America reign, her bio indicated that she was the daughter of Mr. & Mrs. David Williams.