1892 - Quanah Parker and his wife Tonasa. He was Comanche/Scots-Irish from the Comanche band Noconis, Comanche chief, and leader in the Native American Church. He was the son of Comanche chief Peta Neocons and Cynthia Ann Parker, a European American, who assimilated into the tribe.
People who don't read history books are unaware that a huge number of "cowboys" driving herds to the railheads in Kansas were Indians. And many don't know that some of "Indians" who raided the drives for beef in the the "nations" were runaway slaves and ex-slaves adopted into the tribes in the Oklahoma territory. Western movies don't tell you that.