Dear Ms. Wilson,
Thank you for posting your request on History Hub!
The tribes collectively known as the Blackfeet Nation are located in the northern plains of the United States and Canada. They have not been located in or relocated from Tennessee. We suggest that you review the FamilySearch Research wiki for Indigenous Peoples of Tennessee for more information about the native peoples of Tennessee.
We hope this is helpful. Best of luck with your research!
[Information provided by Cody White, Subject Matter Expert]