ACCORDING TO THE NICE PEOPLE AT THE CHEROKEE REGISTRATION OFFICE, THERE IS NO MINIMUM BLOOD AMOUNT REQUIRED FOR MEMBERSHIP!
To enroll in the Cherokee Nation of Oklahoma you have to do several things:
You have to establish you are the direct relative of a Cherokee who listed on one of the several government rolls taken around the turn of the century (Dawes, Miller, etc.).
This is best done through the use of certified birth certificates issued by the State where you were born.
If you cannot establish your direct "blood" link through a chain of birth certificates, it will be very difficult to join the tribe.
Contact the tribal offices in Tahlequah, Oklahoma at the address listed below. Ask them for a "Certified Degree of Indian Blood" (CDIB) application and a tribal membership application.
You will first need to have the Bureau of Indian Affairs determine the amount of Cherokee blood you have (1/4, 3/8, etc.). This is done through the CDIB application. Fill out the application & mail it to the tribal address below.
Once the BIA has determined this & that you are "really" a Cherokee, they will mail you the CDIB card.
You can then apply for tribal membership by mailing the tribal membership application to the address below.
You must get your CDIB card first!
The process usually takes several months because they are backlogged in Talaquah.
When you do all of these things, you will then be a member of the Cherokee Nation of Oklahoma. I do not know what procedures you have to use to join the Eastern Tribe in North Carolina.