She said their relationship had ended when she left the school to study abroad, though she had received a stream of letters from Mr Brewer signed Mat, which she said stood for "Middle Aged Teacher".

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The men described the fourth man, The Master, as a middle-aged, part-time teacher who hung around their window-and-door-making shop.

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Mr Lewis, from Carmarthenshire, had started working in the pits aged 14 but became a teacher after graduating in 1931.

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She shares the teaching duties for the pupils, aged between four and 11, with newly-qualified teacher Delyth Griffiths.

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The most incredible thing is that their head teacher, Suad, became head of the school aged 25 and was in fact a product of that very school.

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