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CASO INDIANS. The Caso Indians are known from a Spanish document of 1748 that lists the names of twenty-five Indian groups of east central and southeastern Texas who had asked for missions in the general area. Although it cannot be demonstrated, it seems likely that the Casos were the same as the Caxos, who were reported in a Spanish missionary report from eastern Texas in 1691. The Caxos are generally considered to have been Caddoans of the southwestern or Hasinai division.

Herbert Eugene Bolton, Texas in the Middle Eighteenth Century (Berkeley: University of California Press, 1915; rpt., Austin: University of Texas Press, 1970). Charles W. Hackett, ed., Pichardo's Treatise on the Limits of Louisiana and Texas (4 vols., Austin: University of Texas Press, 1931–46). Juan Agustín Morfi, History of Texas, 1673–1779 (2 vols., Albuquerque: Quivira Society, 1935; rpt., New York: Arno, 1967). John R. Swanton, Source Material on the History and Ethnology of the Caddo Indians (Smithsonian Institution, Bureau of American Ethnology Bulletin 132, Washington: GPO, 1942).
Thomas N. Campbell

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The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article.

Handbook of Texas Online, Thomas N. Campbell, "Caso Indians," accessed October 21, 2016,

Uploaded on June 12, 2010. Published by the Texas State Historical Association.