 It consisted of the towns of Aspull, Blackrod, Horwich, Little Lever, and Westhoughton, and the surrounding townships of Anglezarke, Bradshaw, Breightmet, Darcy Lever, Edgworth, Entwistle, Great Lever, Harwood, Heaton, Longworth, Lostock, Middle Hulton, Over Hulton, Quarlton and Rivington, plus Turton Urban District, and the parts of Rumworth, Sharples and Tonge with Haulgh outside the Parliamentary Borough of Bolton.The Representation of the People Act 1918 reorganised parliamentary seats throughout Great Britain.Constituencies were redefined in terms of the urban and rural districts created by the Local Government Act 1894.