County History
Burnet County was named for a president of the Republic of Texas
The Texas Legislature created Burnet County on February 5, 1852, carved from Travis, Williamson, and Bell counties, and named it for David G. Burnet.
David G. Burnet served as president of the provisional government of the Republic of Texas. The county named after him sits on the northeastern edge of the Hill Country, covering roughly 1,000 square miles. Elevations range from about 700 to 1,700 feet above sea level. The county seat is Burnet, located at the intersection of U.S. Highway 281 and State Highway 29.
Early Texas Rangers arrived in the area around 1847. By 1851, the population was large enough to petition for a new county. Settlers included Anglo farmers, a Mormon colony led by Lyman Wight, and others who came for the land. By 1860, the county had more than 30,000 cattle. The Handbook of Texas at tshaonline.org has a full county history.
Source to confirm: TSHA Handbook of Texas — Burnet County