sentences:  Using the Dawes Rolls as a basis for determining membership of descendants, the Nation has enrolled more than 58,000 members, descendants of the allottees.From 1981-2001, the Creek had membership rules that allowed applicants to use a variety of documentary sources to establish qualifications for membership.In 1979 the Muscogee Nation Constitutional Convention voted to limit citizenship in the Nation to persons who could prove descent by blood, meaning that members had to be able to document direct descent from an ancestor listed on the Dawes Commission roll in the category of "Creek by Blood".