A talk given by Brian Davies, of Pontypridd Museum, at the Dic Penderyn Society, Merthyr Tydfil, on 20 February 2013. John Nixon who was born in Durham and became a pioneer of the steam-coal trade in south Wales during the 19th century. Opened collieries in Mountain Ash and Merthyr Vale. He is buried in Mountain Ash Cemetery. © Edwyn ap Harri 2013
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