Irwell Vale Mills, Helmshore
of Helmshore, Haslingden.
1877 Mentions death of William Rostron, age 38, senior partner of Rostron Brothers, woollen manufacturers of Irwell Vale Mill
1891 Directory: Listed. Thomas Aitken and Son, Irwell Vale Mills; 7,500 spindles, 221 and 301; 120 looms, calicoes, belting, fustians, filter cloths and cotton drying felts for paper makers. [1]