Hokan–Siouan) connected to Siouan in Morris Swadesh's Hokogian family with Hokan, Muskogean, and other Gulf languages, grouped together with Coahuiltecan and Chitimacha (and not with Hokan, pace Sapir) To date, none of these proposals have been successfully demonstrated. Bibliography Campbell, Lyle. (1997). American Indian languages: The historical linguistics of Native America. New York: Oxford University Press. . Goddard, Ives (Ed.). (1996). Languages. Handbook of North American Indians (W. C. Sturtevant, General Ed.) (Vol. 17). Washington, D. C.: Smithsonian Institution. . Golla, Victor. (2011). California Indian Languages. Berkeley: University of California Press. Heizer, Robert F. (Ed.). (1978). California. Handbook of North American Indians (W. C. Sturtevant, General Ed.) (Vol. 8). Washington, D. C.: Smithsonian Institution. Mithun, Marianne. (1999). The languages of Native North America. Cambridge: Cambridge University Press. (hbk); . References Language families Penutian languages Indigenous languages of California