Dear Ms. Ruiz,
Thank you for posting your request on History Hub!
For an overview on how to begin your research, we suggest that you review NARA’s Native American Heritage web page as well as the FamilySearch Research wiki for Indigenous Peoples of the United States Genealogy. In addition, the FamilySearch Research wiki for Texas Genealogy and Texas Vital Records may be useful.
We hope this is helpful. Best of luck with your research!
Thank you for your email. Your inputs are very much appreciated. I will use those suggested websites for my research journey.
All the best,