Indian Territory included land in the central United States that was set aside for the forced resettlement of various Indian tribes originally from the southeast United States. Indian Territory included the area that later became the State of Oklahoma.
If you are searching for American Indian ancestors, especially ones associated with the southeastern states or Oklahoma, you should try searching the Search Census section of Ancestry Library Edition’s (Ancestry LE) main page. Use these terms:
BIRTH—LOCATION: Indian Territory, USA (Exact to this place)
RACE/NATIONALITY: Indian (Exact)
You will get these results:
1940 Census: 56,431 hits
1930 Census: 86,252 hits
1920 Census: 52,220 hits
1910 Census: 66,670 hits
1900 Census: 54,421 hits
Note: Even though Oklahoma became a state in 1907, the above-noted searches produce nearly identical results whether BIRTH—LOCATION provided is Indian Territory, USA or Oklahoma, USA.
The following searches in Ancestry LE’s Card Catalog will reveal additional American Indian record collections of interest:
CARD CATALOG—TITLE: indian u.s. (5 hits)
CARD CATALOG—TITLE: indian oklahoma (8 hits)
You may use Ancestry LE at Central Library or any of our branches.