Bureau of Indian Affairs Central Classified Files, 1907-1939
Level 1 microfilm: 970.5 R311
Series A: Indian Delegations to Washington
Series B: Indian Customs and Social Regulations
Series C: Indian Health and Medical Affairs
Series D, pt. 1: General Organization, Regulations, and Types of Schools
Series D, pt. 2: Correspondence and Reports on Reservation Day and Boarding Schools

FBI Files on the American Indian Movement and Wounded Knee
Level 1 microfilm: 973.0497 F287
Reels 1-26

Indian Census Rolls, 1885-1940
Level 1 microfiche: 970.631 I39
The Mansfield Library has those rolls for Montana tribes.

Indian Claims Commission
Level 1 microfiche: 343.73025 E96
Index to the Expert Testimony Before the Indian Claims Commission, The Written Reports, compiled and edited by Norman A. Ross.

Letters Received by the Office of Indian Affairs. 1824-81
Level 1 microfilm: 970.478 U58L

List of Documents Concerning the Negotiation of Ratified Indian Treaties, 1801-1869
Level 1 microfilm: 970.5 U58d
“Ratified Indian treaties are one of the basic sources of documentation of the Government's policy toward Indians and the legal status of the tribes.” This list of selected documents in the National Archives “includes all documentary materials in the records of the Bureau of Indian Affairs and the Office of the Secretary of the Interior that are easily identifiable as throwing light on the authority, intent, and understanding of the men who negotiated these Indian treaties.”

Records of the Idaho Superintendency of Indian Affairs, 1863-1870
Level 1 microfilm: 970.5 U58re

Records of the Montana Superintendency of Indian Affairs, 1867-1873
Level 1 microlfilm: 970.5 U584m Index

Records of the Oregon Superintendency of Indian Affairs, 1848-1873
Level 1 microfilm: 970.5 U58m

Records of the Washington Superintendency of Indian Affairs, 1853-1874
Level 1 microfilm: 970.5 U58rw