CHICKASAW, an American Indian people of Muskogi stock for long resident in northern Mississippi, and later forming one of the "five civilized tribes" of Oklahoma. They were foes of the French, friends of the British, and fierce fighters. They never numbered more than about 5,000, which is also their present population, although this comprises many individuals of mixed blood. (See MUSKOGIAN INDIANS.) See Adair, History of the American Indians CHICKASHA, a city of Oklahoma, U.S.A., on the Washita river, 45m. S.S.W. of Oklahoma city; the county seat of Grady county. It is on Federal highway 81, and is served by the Rock Island, the Frisco, and the Santa Fe Railways. The population in 1920 was 10,179, of whom 1,183 were negroes, and was 14,099 in 193o by the Federal census. Chickasha is the trade centre of a cotton, corn, and wheat-growing region. The city has cotton gins and compresses, cottonseed-oil mills, and other factories, with an aggregate output valued at $4,395,679 in 1925. Natural gas is used. The Oklahoma college for women, a State institution, was opened here in 191I. Chickasha was founded in 1892 and in corporated in 1899.