sentences:  All remaining traces of Cooke's town were obliterated at this point.Throughout the remainder of the 18th century, Cookstown prospered quietly as a market town where linens, seeds and other agricultural produce were marketed at its famous market.In 1802, Col William Stewart (James Stewart's unmarried son) approached the famous London architect, John Nash and requested that he visit the area to rebuild the Castle of Killymoon which had been burnt in 1801.