‘Indian Territory, West of the Mississippi.’ Mr. McIlvaine. Report, The Committee on Indian Affairs, to whom was referred the resolution of the House instructing the committee “to inquire into the expedience of organizing a territorial government in the Indian country west of the Mississippi, to which the Indians have been removed by the government.” 30th Congress, 1st Session, House of Representatives, document no.736, 14 pages, 6/27/1848, Box: 1, Folder: 1, Item: 21. James L. Britton American Indian Collection, A-0118. East Texas Research Center. https://archives.sfasu.edu/repositories/2/archival_objects/114181 Accessed October 07, 2026.