Since 2006, one of the country’s largest public exhibits of Civil War memorabilia found its home in a faux southern manor in White Settlement, a few hundred feet off Loop 820. Collin Jefferson stood by the gift shop of the Texas Civil War Museum late Thursday morning, as the first of its final visitors began to trickle in. The store had mostly been scraped clean, save for some T-shirts and containers of disfigured, 0.58 caliber bullet casings selling for $0.92 a piece. “The mood has been kind