unfortunately, you have not named a location, given any years they were alive, named no spouses or children. you have given no dates of death. you haven’t given your grandmother’s name. this is a common surname, so you have to give more information rather than less. if you post about women, it is helpful to include their maiden name and married name and designate which one is the maiden name.
first of all, heritage and tribal enrollment are two different things. many times natives didn’t apply for enrollment because 1) they didn’t qualify, 2) they were philosophically opposed to enrollment, 3) they didn’t have documentation, or 4) they were mississippi choctaw and their ancestor had accepted land or benefits in lieu of tribal enrollmment.
the dawes roll was taken 1896-1906, so you should trace your ancestors down to that time period. mostly, they had to be living in oklahoma by that time and agree to live there permanently.
since the name is so common, i am finding too many possible records.
the tribe has an excellent information to help you. it is found under genealogy advocacy.
i am just a volunteer that wants to empower people to learn how to do genealogy.
suzanne hamlet shatto