Monmouthshire and South Wales Miners' Association

This provided the spur for the formation of the Monmouthshire Miners' Association, in January 1888, which affiliated to the MNU.

[4] The Monmouthshire Miners was a founding member, and the MFGB shared its position on the sliding scale.

In the hope of recruiting more widely, the union changed its name to the Monmouthshire and South Wales Miners' Association.

[5] Subsequently, the employers ended the sliding scale in response to the Welsh coal strike of 1898.

[2][1] The union was led by Samuel Mills, its general secretary, and its agents, William Brace and Ben Davies.