Tehuacana
Tehuacana is at the intersection of State Highway 171 and Farm Road 638, six miles northwest of Mexia in northeastern Limestone County. A post office called Tewockony Springs was established there in 1847. It was named for the Tawakoni Indians, who lived in the area until the late 1840s. When Tehuacana Academy opened in 1852, the community was known as Tehuacana Hills, though the post office continued to be called after the springs. The post office was discontinued during the Civil War , but service resumed in 1869, at which time the name of the office was changed to Tehuacana. Also in 1869, John Boyd persuaded the Cumberland Presbyterian Church to make Tehuacana the site of Trinity University. By the mid-1880s Tehuacana had three churches, two gristmills and cotton gins, and 500 residents. It was incorporated in 1890 with a mayor-council form of city government