In November 1889, the representatives decided to form the North Wales Miners' Federation, and by mid-1890 this included branches at 25 collieries, with a total of 7,793 members.
[2] In 1894, the North Wales Quarrymen's Union affiliated to the association, increasing its membership by 13,000, although they soon left again.
[6] Never a large organisation – the Association had only 7,500 members in 1945 -[7] from about 1900, its General Secretary also served as its Agent, and even that post was left vacant from 1932 until 1934.
[8] In 1945, the MFGB became the National Union of Mineworkers, and the Association became its North Wales Area, with less autonomy than before.
Its then Secretary, Ted McKay, opposed the strike, but the Bersham Colliery was heavily picketed by miners from other areas and did not work until November 1984.