I can’t find the first name of my grandsons, Campo Cormier Indian grandfather

I can’t find the first name of my grandsons, Campo Kumeyaay Nation of San Diego Indian grandfather. I only know his
Adoptive first and last name, as well as, his birthday. He was adopted and now he has passed on. His roll number has been misplaced or taken. I am not sure. Can anyone direct me on how to find out his lineage so I can request membership for my grandson into his tribe so he could benefit from his culture and all the other benefits.


    Thank you for posting your question on History Hub!
    The Indian Census Rolls, 1885–1940 (Microfilm M595) in the Records of the Bureau of Indian Affairs (Record Group 75) may be a good place to start. These rolls include individuals and families who maintained a formal connection with federally recognized American Indian tribes, although there is not a census for every tribe for every year. For more information about the records, including ways to access them online, see the National Archives page on Indian Census Rolls.
    When embarking on Native American genealogy, please note that the records in the custody of the National Archives and Records Administration (NARA) often only detail those who lived on federal reservations being administered by the Bureau of Indian Affairs. NARA does not have a list of everyone with Native American heritage; the U.S. government never maintained such a list. We only have historical records that federal agencies like the Bureau of Indian Affairs created to document enrolled members of federally recognized tribes. If an ancestor was Native American and left the reservation or did not have interaction with the United States Government as such, it is unlikely that they will be recorded in NARA’s Bureau of Indian Affairs records, and tracing their Native American heritage may be difficult.
    If a person was not formally affiliated with a federally recognized tribe, then they might still appear in the decennial census as an "Indian," if they were recorded as such. See Native American Heritage: Federal Population Census for more information about Native Americans in the decennial census. The web page Search Census Records Online and Other Resources provides information about accessing decennial census records online.

    In addition, we suggest that you review the NARA Native American Heritage: Researching an Individual or Family web page, the NARA Resources for Genealogists web page, the History Hub Blog titled Suggestions and Advice for Family History Researchers, the Bureau of Indian Affairs page for Tracing American Indian and Alaska Native (AI/AN) Ancestry, and the Department of the Interior page on Trace Indian Ancestry.

    We hope this assists you with your research! 
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