Boggy! Well written.
There was a family of Tonkawas that lived in the area just north of present Smithville, Bastrop County into the 1870's. In the area of the entrance of present day Buescher State Park. I think it was W.W. Newcomb who researched them for his book "The Indians of Texas" . They lives as anyone else in these parts did, in a cabin/frame house.
Another band of natives that survived in these parts were up in Lee county north of the Giddings/ Carmine area. One family unit, lived in a dugout type cabin. Texas Archaeological Society excavated the remains of this place in the early 1950's.
As mentioned by many other contemporary writers of the day, those that held out were generally absorbed into the existing Hispanic communities, beginning in the 1840's.
These folks were of an assortment of linguistic groups, Attakapan, Saha, and Cohuilatecan, for examples.
