Dear Ms. Hyde,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the series Applications for Enrollment in the Five Civilized Tribes, 1898-1914 (also known as the Dawes Rolls) in the Records of the Bureau of Indian Affairs (Record Group 75) that may include Mattie Duncan Wren Eagle Chief. Most of these records have been digitized and are available using the Catalog. For more information about the non-digitized records, please contact the National Archives at Fort Worth (RM-FW) at firstname.lastname@example.org. We suggest that you review the NARA web page for Dawes Rolls as an overview of how to research that resource.
We also located the series Index to the Cherokee Final Rolls, 1906? - 1914?, the series Index to Enrollment Cards, 1899-1907, the series Enrollment Cards, 1898-1814, the series Citizenship Certificate Stubs, 1886, and the series Tribal Rolls, 1896-1964 that include information related to the Cherokee tribe. Some of these records have been digitized and may be viewed online using the Catalog. Please contact RW-FW for more assistance with the non-digitized records.
Due to the continued impact of COVID-19, you may experience a delay in receiving an initial acknowledgment as well as a substantive response to your reference request from RW-FW. We apologize for this inconvenience and appreciate your understanding and patience as we balance mission-critical work and the safety of our staff during the pandemic. Please check NARA’s web page about COVID-19 updates for the latest information.
In addition, we suggest that you review the National Archives (NARA) Native American Heritage webpage, the NARA Resources for Genealogists webpage, and the FamilySearch Research wiki for Indigenous Peoples of the United States Genealogy.
Finally, the Oklahoma Historical Society provides an online search portal for the Dawes Rolls that you may find useful. And you may wish to contact the Cherokee Nation directly for further assistance.
We hope this is helpful. Best of luck with your family research!