The Grogan Manufacturing Company's mill at Gladstell appeared in a 1915 directory of sawmills as having a daily cutting capacity of 50,000 feet. Forty percent of the mill's business was in tie production. Its owners incorporated the Grogan-Cochran Lumber Company in 1917. The Gulf Coast Lumberman in 1917 reported that the company was running a mill at Gladstell and building one near Conroe. This plant was still operating in 1928 and was running a company town at Gladstell as well as operating a 15-mile logging tram road.