Yeagers & Brights, Are They Cherokee

I am stuck, my great grandmother Ellen Yeager Jones said she was Cherokee, everything I can find has her & the rest of the family listed as white. Years came from NC, Virginia & KY. A few of the Yeagers died in OK. I did find where my great great grandparents, Joseph E. Bright & Nancy Bright was in OK in 1910. Joseph E. was buried in Lincoln OK in 1925, Nancy died in 1914, doesn’t say where. https://familysearch.org/ark:/61903/2:1:MWHX-WP1