[header] How to register as a native american [title] Retain copies of your parents' or families' tribal records. [step] This is the best way to find out the tribe and the connection you have to a native american tribe. You will be able to use copies of these records to prove you are a descendant of a tribe member, and possibly to prove your blood quantum. 
[substeps] Other important records that may be kept by family members include school records, newspaper clippings, birth certificates, marriage certificates and baby books. Look for tribal membership cards, which will be helpful once you prove a link to the ancestor in the card.