sentences:  With the establishment of Gunning's Linen Weaving Mill, the expansion of the Wellbrook linen finishing estate, the establishment of Adair's weaving mill at Greenvale and the final arrival of the railways, Cookstown's population quadrupled between 1820 and 1840.The railways allowed the fast transport to and from the town of agricultural produce.Two railways established terminus railway stations at Cookstown - the London, Midland and Scottish Railway in their dressed stone station designed by Charles Lanyon (now much altered as a Chinese restaurant on Molesworth Street) and the Great Northern Railway in their brick station next door (now Cookstown High School's Hockey Club).