The South Wales Coalfield Collection covers much of the old counties of Glamorgan, Monmouthshire, Carmarthenshire and part of South Pembrokeshire and provides a unique insight into the social, political and cultural life of the area during the 19th and 20th centuries. It is held between the Archives and the South Wales Miners' Library (SWML):
If an individual was a prominent figure in their community or trade union, or involved in a particular event, such as a mining disaster, there may be reference to them within the South Wales Coalfield Collection. The collection can also be very useful for discovering background information about the communities in the South Wales coalfield. However we do not hold mining personnel records.