ARCHIVES GOV RESEARCH DAWES ROLLS
Excerpt: The National Archives and Records Administration (NARA) has custody of the Final Rolls of the Five Civilized Tribes, known as the Final Dawes Rolls, as well as related census cards, enrollment applications, land allotment jackets, and maps. These records are found in Record Group 48, Records of the Office of the Secretary of the Interior, and in Record Group 75, Records of the Bureau of Indian Affairs.The Final Dawes Rolls and related records are some of the most heavily used records at NARA for researching membership in the Cherokee, Choctaw, Chickasaw, Creek, and Seminole Nations in Indian Territory (present-day Oklahoma).
Note that these tribes were originally exempted but did end up being counted, and it's controversial.
Excerpt: Then, in 1895, Congress authorized a survey of Indian Territory, and in 1896 Congress authorized the Dawes Commission to add names to existing tribal rolls as a preliminary step to allotment. The Commission received more than 7,500 applications for enrollment and traveled throughout Indian Territory conducting hearings.
These applications, known as the 1896 Applications, were declared null and void two years later, when Congress passed an act on June 28, 1898, authorizing the Commission to proceed with enrollment and allotment for the Five Civilized Tribes without tribal consent. The 1898 act, known as the Curtis Act, also provided for the termination of the Five Civilized Tribes’ tribal governments. By 1902, each of the Five Tribes had negotiated and ratified an agreement that modified the terms of the Curtis Act and became the basis for enrollment and allotment.
With new guidelines in place, the Dawes Commission accepted enrollment applications from 1898 through 1907, with a handful accepted in 1914.