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The History and Heritage of Ystalyfera is put online by Swansea Valley researcher Val Trevallion and Wolfian Design. All copyright remains with the original copyright holder, and all original research is copyright Val Trevallion, YEARGroup.

You can contact Ystalyfera History by emailing: contact@ystradgynlais-history.co.uk or Val Trevallion by emailing yeargroup@hotmail.co.uk.