The excerpts below are from Texas Local Government Code, Chapter 318. They provide an outline for structuring a County Historical Commission (CHC), and the work it is enabled to perform. Links to additional reference material are provided in the text. You can read the statue in its entirety here.

LOCAL GOVERNMENT CODE, TITLE 10., SUBTITLE B., CHAPTER 318., SUBCHAPTER A., COUNTY HISTORICAL COMMISSION

SUBCHAPTER B. SUPPORT OF PRIVATE ORGANIZATIONS