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The 1910 tourist died of complications after he threw himself into the path of a runaway coal wagon at a South Wales colliery as it rattled towards some children playing in its path.

A colliery spoil tip collapsed, catastrophically engulfing a primary school and surrounding houses on 21 October 1966.

Mr Hopkins started work at the Merthyr Vale colliery and continued in the industry until 2010 in private mines after privatisation.

"The circumstances of my father being a manager in a colliery meant you didn't make friends," she said.

The Mines Remediation Authority - formerly known as the Coal Authority - is responsible for maintaining a number of tips, including one on the site of the former Caerau colliery in Bridgend County.