 Now seeing itself as an industrial union accepting as members all workers in the industry, this marked the start of rapid growth.Membership rose to 4,500 in 1910, of which almost half were women - unusual for a union of the period - then to 13,400 in 1914, when it became the "General Union of Textile Workers", and 64,000 by 1918.In 1922, the union merged with the National Society of Dyers and Finishers and the Yeadon, Guiseley and District Factory Workers' Union, forming the National Union of Textile Workers.