Texas History and Genealogy - presented by Genealogy Trails

Handbook of Texas Online, s.v. "," http://www.tsha.utexas.edu/handbook/online/articles/CC/hcc7.html (accessed May 15, 2007). (NOTE: "s.v." stands for sub verbo, "under the word.") Anglo settlement in the area that became Cass County began in the 1830s. Among the earliest settlers was Reece Hughes, who built a cabin near three mineral springs which later became known as Hughes Springs. The county was formed from Bowie County in 1846. Jefferson was chosen as the first county seat, but, after several fiercely contested elections, in 1852 Linden became county seat.
The county's boundaries were reduced in 1860 with the formation of Marion County, but, with the exception of small adjustments, have remained unchanged since that time. The county was originally named Cass County in honor of Lewis Cass, a United States Senator from Michigan who had favored the annexation of Texas.
During the secession crisis Cass, who had formerly been known as a Northern man with Southern principles, resigned his post as secretary of state when President James Buchanan declined to defend the federal forts in Charleston, South Carolina. When word of his actions reached Texas, the name of the county was changed to Davis in honor of Jefferson Davis. The republican-controlled state legislature of 1871 changed the name back to Cass.