Jack Petersen OBE TD 1911 - 1990. Cardiff born, First Welshman to win British & Empire Heavyweight Boxing Championships. Trained in this building. Ganed yng Nghaerdydd, y Cymro cyntaf i ennill Pencampwriaethau Boscio Pwysau Trwm Prydain a'r Ymerodraeth. Hyfforddwyd yn yr adeilad hwn.
6-7 St John Street, Cardiff
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