article_snippet: It is the second tragedy to hit his mother after two of his mother siblings died in the 1966 Aberfan colliery disaster.
article_snippet: Mrs Challis was standing at the bus stop on October 21, 1966 waiting for Mrs Challis lift to school when Mrs Challis saw the enormous colliery slag heap which loomed above Mrs Challis siblings' school collapse and destroy the classrooms.
article_snippet: Mrs Challis neighbour said: 'Mrs Challis's neighbour had talked about the 1966 Aberfan colliery disaster and the 1966 Aberfan colliery disaster still moved Mrs Challis's neighbour to tears. '
article_snippet: Mrs Challis witnessed the horrific Aberfan colliery disaster (pictured) in 1966 and was yards away when Mrs Challis eight-year-old brother and seven-year-old sister were tragically killed along with 116 other school children .
highlights_snippet: Mrs Challis witnessed the Aberfan disaster which killed Mrs Challis siblings in 1966 .