South Wales and Monmouthshire Colliery Winding Enginemen's Association and Provident Trade Union

The South Wales and Monmouthshire Colliery Winding Enginemen's Association (SWMCWEA) and Provident Trade Union had a registered office at 74 Trehafod Road, Trehafod, Glamorgan. The Union had branches at most of the major coalmining towns in the south wales coalfield. No branch of the Union was allowed to have a representative on the General Executive Council unless they had a membership of over fifty. However, the society did have an agent (also the General Secretary) who was required to attend all inquests which affected members or upon the request of society members.

In August 1947, proposals were made to merge the Association into the South Wales Area of the National Union of Miners. These included transference of membership to the NUM on a pit basis and a requirement that all NUM lodges had to co-opt a Winding Enginemen onto their Lodge Committee. The merger was successful and the Winding Enginemen officially became part of the NUM (South Wales Area) in 1948.

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