Representatives of miners from the Gwendraeth, Amman and Swansea Valleys began meeting once again in 1881, with the support of William Abraham, agent for the nearby Cambrian Miners' Association. In 1882, an agreement was reached with coal owners in the district to regulate wages according to a sliding scale. By 1883, the support was taking up more of Mabon's time, and he stated that he would withdraw from the meetings, unless the local miners established their own union. As a result, they founded the Anthracite Miners' Association, with Mabon becoming its agent, and Enoch Rees becoming part-time secretary.
The union grew steadily; by 1892 it had 3,500 members, and covered 38 of the 42 collieries in the district. It also became politically active, partially sponsoring Mabon as a Member of Parliament, and also contributing funds to David Randell, MP for Gower, who acted as the union's solicitor. With Mabon as its agent, the union was closely aligned with the Cambrian Miners, and it similarly supported the sliding scale of payment, whereby wages rose and fell in line with the export prices of coal. As a result, it did not join the Miners' Federation of Great Britain, which opposed the sliding scale. In 1897, Rees was found drowned at a place known as Pwlldu in the Garw River. He was replaced as secretary by John D. Morgan. Membership of the union continued to rise, as coal production in the district increased, and by early 1898, it had reached 6,050. Following the unsuccessful Welsh coal strike of 1898, the South Wales Miners' Federation was established, and in November 1898, the union joined the new federation, becoming its Anthracite District.
Anthracite District
The Anthracite District retained a high level of autonomy, and initially continued with its existing leadership. Its membership continued to grow, and by 1900 it was decided that Mabon did not have sufficient time to continue as agent. In a close election, he was replaced by Daronwy Isaac, but Daronwy died just three years later, and Morgan took over the post, remaining in place until 1920. Membership reached 10,856 by 1914, but by 1934 all the districts of the SWMF were in financial difficulty, and they were replaced by eight areas, with less importance. The Anthracite District was merged with the Western District to form Area No.1, which soon became known as the Anthracite Area.
