[4] In 1686, French explorer Henry de Tonti visited Yatasi settlements on the Red River.
[7] In 1712 to 1714, French-Canadian colonist Louis Juchereau de St. Denis offered the Yatasi protection against the Chickasaws.
The Yatasi provided bear fat and bison and deer hides in exchange for cloth, blankets, metal tools and weapons, combs, glass beads, flint, ammunition, vermillion dye, mirrors, and copper.
[9] That day the Kadohadacho and Yatasi both agreed to allow Spain proprietorship of their lands and promised not to supply the Comanche, Wichita, Tawakoni, and Kichai tribes with weapons or ammunition.
[1] After the United States took over control of Louisiana, Dr. John Sibley became the Indian agent who oversaw relations with the Yatasi and neighboring tribes.