I've recently started the Early Red River, Texas One Place Study, focusing on settlers on the north Texas frontier before statehood. I've been working on this since the 1960s and presently have info on more than 3,000 individuals, with more than 150 profiles created or tagged so far at WikiTree. (Many more coming, as I can get them typed.)
If you have ancestors from Jonesborough, Pecan Point, early Clarksville, or the surrounding small communities -- or from the north bank of the river before the Adams-Oñís Treaty and the later Indian treaties -- you're invited to join in!
Michael K. Smith