Swarming ox-carts and cotton wagons, busy stores and saloons, casino tables stacked with gold: this was early Calvert, a major cotton export and trade center. Community began as "Sterling," in Sterling C. Robertson colony of the 1820s. It was center of mustering and military supply activity in Civil War, 1861-1865. When Houston & Texas Central Railroad route was established here, 1868, town was moved 2 mi. to the right of way and renamed for Judge Robert Calvert, pioneer Texan, local landowner, benefactor, and civic leader-- a descendant of Lord Baltimore of Maryland.