Ellers Mill. In 1896, Ellers Mill was sold as a water powered cotton mill and played an important part in the early industrial growth of Ulverston. Cotton spinning continued in the town until the American Civil War of 1862 caused a shortage of raw materials, resulting in a decline of trade. Other goods produced at Ellers Mill during the 19th and early 20th centuries include leather, paper, candles, rope, checks and ground corn.