Seal of the Tonkawa Tribe of Oklahoma
|Regions with significant populations|
|United States ( Oklahoma)|
|English, Tonkawa language|
|Christianity, Native American Church, traditional tribal religions|
|Related ethnic groups|
|Wichita, Waco, Tawakoni, Kichai, Guichita|
The Tonkawa are a Native American tribe indigenous to present-day Texas. They once spoke the now- extinct Tonkawa language,  a language isolate.  Today, many descendants are enrolled in the federally recognized Tonkawa Tribe of Indians of Oklahoma.
In the sixteenth century, the Tonkawa tribe probably had around 1,879 members with their numbers diminishing to around 1,600 by the late seventeenth century due to fatalities from new infectious diseases and conflict with other tribes, most notably the Apache. By 1921, only 34 tribal members remained. Their numbers have since recovered to close to 700 in the early twenty-first century. Most live in Oklahoma. 
The Tonkawa tribe operates a number of businesses which have an annual economic impact of over $10,860,657 (as of 2011).  Along with several smoke shops, the tribe runs 3 different casinos: Tonkawa Indian Casino and Tonkawa Gasino located in Tonkawa, Oklahoma, and the Native Lights Casino in Newkirk, Oklahoma. 
The annual Tonkawa Powwow is held on the last weekend in June to commemorate the end of the tribe's own Trail of Tears when the tribe was forcefully removed and relocated from its traditional lands to present-day Oklahoma. 
Scholars once thought the Tonkawa originated in Central Texas. Recent research, however, has shown that the tribe inhabited northwestern Oklahoma in 1601.  By 1700, the stronger and more aggressive Apache had pushed the Tonkawa south to the Red River which forms the border between current-day Oklahoma and Texas.
In 1824, the Tonkawa entered into a treaty with Stephen F. Austin to protect Anglo-American immigrants against the Comanche. At the time, Austin was an agent recruiting immigrants to settle in the Mexican state of Coahuila y Texas. In 1840 at the Battle of Plum Creek and again in 1858 at the Battle of Little Robe Creek, the Tonkawa fought alongside the Texas Rangers against the Comanche. 
In 1859, the United States escorted the Tonkawa and a number of other Texas Indian tribes to a new home at the Wichita Agency in Indian Territory, and placed them under the protection of nearby Fort Cobb. When the American Civil War started, the troops at the fort received orders to march to Fort Leavenworth, Kansas, leaving the Indians at the Wichita Agency unprotected.
In response to years of animosity (in part regarding rumors that the Tonkawas engaged in cannibalism   ), a number of pro-Union tribes, including the Delawares, Wichitas, and Penateka Comanches, attacked the Tonkawas as they tried to escape.  The fight, known as the Tonkawa Massacre killed nearly half of the remaining Tonkawas, leaving them with little more than 100 people. The tribe returned to Fort Griffin, Texas where they remained for the rest of the Civil War. In October, 1884, the United States removed them, once again, to the new Oakland Agency in northern Indian Territory, where they remain to this day. This journey involved going to Cisco, Texas, where they boarded a railroad train that took them to Stroud in Indian Territory, where they spent the winter at the Sac and Fox Agency. The Tonkawas travelled 100 miles (160 km) to the Ponca Agency, and arrived at nearby Fort Oakland on June 30, 1885. [a]
The Tonkawa Tribe of Oklahoma incorporated in 1938. 
The Tonkawa were made up of various groups, many of which are no longer known by name. These groups are generally counted as Tonkawa:
- 2011 Oklahoma Indian Nations Pocket Pictorial Directory. Archived 2012-04-24 at the Wayback Machine Oklahoma Indian Affairs Commission. 2011: 36. Retrieved 8 Feb 2012.
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- Barnes, Michael "With time, the story of the Tonkawa tribe evolves" The Washington Post (February 13, 2014)
- Jones, William K. 1969. “Notes on the History and Material Culture of the Tonkawa Indians.” Smithsonian Contributions to Anthropology. Vol. 2, No. 5.
- Jerry Withers "The Tonkawan Indians of Texas" reprinted by SonsofDewittcolony.org)
- : John D. May "Tonkawa Massacre" OKHistory.org
- "Tonkawa Tribe of Indians of Oklahoma." Oklahoma State Department of Education. Oklahoma Indian Tribe Education Guide. July 2014. Accessed October 28, 2018.
- Deloria Jr., Vine J; DeMaille, Raymond J (1999). Documents of American Indian Diplomacy Treaties, Agreements, and Conventions, 1775-1979. University of Oklahoma Press. pp. 346–348. ISBN 978-0-8061-3118-4.
- Himmel, Kelly F. (1999). The conquest of the Karankawas and the Tonkawas, 1821-1859. College Station, Texas: Texas A&M University Press. ISBN 978-0-89096-867-3.
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