In 1871, an ice plant was added to one of the packeries, which allowed preservation of the meat. Rockport’s packeries included W.A. Cushman; Doughty & Clark; West & Weiser Co.; William S. Hall; Coleman, Mathis, & Fulton; J.W. Baylor & Co.; American Beef Packery; and Butler & Co.
The local packing industry declined after 1875 as railroads pushed into Texas to allow shipment of cattle directly to giant packing plants in St. Louis and Chicago. Yet, as late as 1880, the Rockport packeries handled 93 percent of the Texas-packed beef production. By 1890, most packeries had switched to butchering sea turtles, and Rockport handled almost the entire Gulf production. Most prized were the green turtles, and 85 percent of all Texas turtle nets were in Aransas Bay. By the late 1890s, the turtle population had diminished and the industry folded. Remnants of turtle capture pens can still be found along Rockport’s bay shores.