It's impossible to say definitively which specific Native American group was the first to settle in Texas, as archaeological evidence and oral histories can only provide a general picture of the timeline and movement of indigenous peoples.

However, evidence suggests that the Paleo-Indians, the earliest inhabitants of North America, were present in the area that is now Texas around 13,000 years ago. These hunter-gatherer societies gradually spread across the continent, adapting to diverse environments and evolving into distinct cultural groups.

Over time, various Native American tribes came to inhabit Texas, including:

* The Apache: While they later moved west, they were present in parts of Texas for centuries.

* The Comanche: Known for their equestrian skills and nomadic lifestyle, they dominated the plains of Texas.

* The Caddo: Primarily located in eastern Texas, they were known for their complex agricultural systems and political structures.

* The Karankawa: A coastal tribe known for their hunting and fishing skills.

It's important to note that these are just a few examples, and many other tribes and smaller groups resided in Texas. The landscape was diverse, with different groups inhabiting different areas and adapting to various environments.

Understanding the history of Native Americans in Texas requires appreciating the complexity and fluidity of their cultures and movements over millennia.