Delaware County, Oklahoma: History
Archaeological studies have shown that at least three different periods of prehistoric people had lived in the area covered by Delaware County. These included 23 Archaic, 17 Woodland, and 63 Eastern Villager sites. Artifacts date back between 1400 and 2000 years from the present. Many of these sites have been submerged since the creation of Grand Lake o' the Cherokees.
Few Native Americans lived in the area until the early 19th century, when the federal government began relocating tribes from the Eastern United States. About 1820, a group of Lenape, who had allied with the Cherokee against the Osage, settled Delaware Town, about two miles south of the present town of Eucha. In 1828, the Western Cherokee moved from Arkansas Territory into the area just south of the present Delaware County. In 1832, the Seneca moved from Ohio into an area that included the northeastern part of Delaware County.
The present-day county was created at statehood in 1907. Initially, Grove, the only incorporated town in the county, was designated as the county seat. However, a large number of county residents wanted a more centrally located seat. This group founded the town of Jay, where they built a wooden courthouse and won an election to move the county seat. A court suit resolved the dispute in favor of the Jay location.