What happened to the Cherokee from the Southeastern US who migrated to settle in Northern Mexico?
It is often overlooked how Northern Mexico in the 1800s came to harbor displaced indigenous groups from the Eastern Woodlands of the US, such as the Kickapoo who came from the Great Lakes, Seminoles and Black Seminoles who came from Florida westward (though Black Seminoles/Mascogos stayed and the main Seminoles left).
As part of this frontier migration, I encountered a quite interesting demographic anomaly; there were Cherokee settlements that ended up in Northern Mexico via fleeing southwestward, which the famous inventor of the Cherokee syllabary, Sequoyah visited. They were located in what is now Coahuila, Mexico. I could find very little research on the actual people, their population history and status within Mexico.
What is known of these settlements and what was their ultimate fate? What legacy, if any do they have today?