Bureau of Indian Affairs Records: Correspondence Files
The ˹ֳ houses many correspondence files created or maintained by the Bureau of Indian Affairs (BIA)—formerly known as the Office of Indian Affairs (OIA)—in Record Group 75. These records date as early as 1800 and, depending on the specific BIA office, as recently as the 1970s.
BIA correspondence files cover a wide range of topics and include letters sent and received between BIA headquarters and field offices; other federal agencies; state, local, and tribal governments; the President and members of Congress; private businesses; and members of the public.
Record-keeping practices changed over time, and there is no consolidated index to all BIA correspondence at the ˹ֳ. However, researchers can generally approach BIA correspondence according to the time period: 1800–1823, 1824–1907, and 1907–onward.
Time Period: 1800–1823
Before the BIA was established in 1824, the Secretary of War oversaw most federal activities related to Indian affairs. An exception was the federally operated factory system of trade with American Indian tribes, which was overseen by the Office of Indian Trade. (For an administrative history of this office, see ˹ֳ Identifier .)
Letters sent and received by the Secretary of War relating to Indian affairs and by the Office of Indian Trade were later transferred to the BIA and are now part of Record Group 75.
Examples
All records listed below are microfilmed and fully digitized in the . Click the ˹ֳ Identifiers for the full archival records descriptions and links to digitized images.
- NARA Microfilm Publication M271, Letters Received by the Office of the Secretary of War Relating to Indian Affairs, 1800–1823 (˹ֳ Identifier )
- NARA Microfilm Publication M15, Letters Sent by the Office of the Secretary of War Relating to Indian Affairs, 1800–1823 (˹ֳ Identifier )
- NARA Microfilm Publication T58, Letters Received by the Superintendent of Indian Trade, 1806–1824 (˹ֳ Identifier )
- NARA Microfilm Publication M16, Letters Sent by the Superintendent of Indian Trade, 1807–1823 (˹ֳ Identifier )
- NARA Microfilm Publication T1029, Letterbook of the Natchitoches-Sulphur Fork Factory, 1809–1821 (˹ֳ Identifier )
- NARA Microfilm Publication M142, Letter Book of the Arkansas Trading House, 1805–1810 (˹ֳ Identifier )
For questions related to these records, please contact the Archives 1 Reference Branch in Washington, DC, at archives1reference@nara.gov.
Time Period: 1824–1907
Between 1824 and 1907, BIA offices typically maintained separate series of incoming and outgoing correspondence. Depending on the office, the correspondence may be arranged chronologically, by BIA jurisdiction, by file number, or by a combination of these elements. Indexes or registers may be available for select series.
Examples
All records listed below are microfilmed and fully digitized in the . Click the ˹ֳ Identifiers for the full archival records descriptions and links to digitized images.
- NARA Microfilm Publication M234, Letters Received by the Office of Indian Affairs, 1824–1880 (˹ֳ Identifier )
- NARA Microfilm Publication M18, Registers of Letters Received by the Office of Indian Affairs, 1824–1880 (˹ֳ Identifier )
- NARA Microfilm Publication M21, Letters Sent by the Office of Indian Affairs, 1824–1881 (˹ֳ Identifier )
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NARA Microfilm Publication M348, Report Books of the Office of Indian Affairs, 1838–1885 (˹ֳ Identifier )
For more information about BIA offices and jurisdictions between 1824 and 1880, see NARA Microfilm Publication T1105, Historical Sketches for Jurisdictional and Subject Headings Used for the Letters Received by the Office of Indian Affairs, 1824–1880, which is fully digitized in the ˹ֳ Catalog (˹ֳ Identifier ).
For information about letters received by BIA headquarters between 1881 and 1907, see the blog post "."
For additional series, search the by record group number (“75”) and keyword (e.g., “letters sent,” “letters received”), and then filter your results by date.
See Using the ˹ֳ Catalog for additional search tips, and Contact Us with questions.
Time Period: 1907–Onward
On August 20, 1907, the BIA central office ceased maintaining separate series of incoming and outgoing correspondence. Thereafter correspondence was filed according to a decimal-subject classification system. See Central Classified Files, 1907–1975.
Many BIA field offices also began in 1907 to shift away from using chronological filing systems for correspondence. However, a formal decimal filing system was not prescribed for BIA field offices until January 1, 1926. New decimals were added as the need arose. For more information, see the blog post "."
Examples
Click the ˹ֳ Identifiers below for the full archival records descriptions in the and links to digitized images, when available.
- Albuquerque Indian School: “General Correspondence File of the Albuquerque Indian School, 1881–1936” (˹ֳ Identifier )
- A folder list for this series and select digitized photographs are available in the ˹ֳ Catalog.
- Contact the ˹ֳ at Denver for more information.
- Navajo Agency: “Central Classified Files, 1924–1954” (˹ֳ Identifier )
- Select photographs from this series have been digitized in the ˹ֳ Catalog.
- Contact the ˹ֳ at Riverside for more information.
- Pine Ridge Agency: “Main Decimal Files, 1900–1965” (˹ֳ Identifier )
- Select records from this series have been digitized in the ˹ֳ Catalog, including files related to Fairs and Expositions (Decimal 047).
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Contact the ˹ֳ at Kansas City for more information.
For additional series, search the by record group number (“75”) and keyword (e.g., “decimal files”), and then filter your results by date. See Using the ˹ֳ Catalog for additional search tips, and Contact Us with questions.