These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Amgueddfa Cymru – Museum Wales
David Thomas was the son of a Merthyr shopkeeper turned coal entrepreneur. He inherited a share in his family’s Cambrian Collieries in Clydach Vale, but pursued a political career as Liberal MP for Merthyr until 1910. Returning to business, he controlled a dozen colliery undertakings by 1916 with an output of 52 million tons.
