The Political Graveyard: Cass County - Lists politicians who lived or died in the county. Cass County TXGenWeb - Cass County Texas Genealogy and history data. Butterflies of Cass County, Texas - Information about and pictures of all the known species of butterflies in the county. Handbook of Texas Online: Cass County - Current and historical information about Cass County. Cass County Government - Features courts. offices, and news. Cass County Appraisal District - Includes forms, property search, and contact information. Cass County Sun and Atlanta Citizens Journal - Area news, sports, and classifieds for Atlanta, Linden, and the rest of Cass County.