My great grandmother is said to be Cherokee Indian. I have had absolutely no luck in proving this and was wondering if anyone could help? I could be wrong on her being Cherokee but I know she is Native American. Her name was Rosella Teague Thomas and she was born on April 6 1928 in Newcomb, Tennessee. She passed away in Louisiana in 1992 and her parents are Avril Thomas and Anna Brook. Her siblings names are Emmit and Floyd Thomas. Any help would be appreciated!