Yn dair ar ddeg oed, felly, rhoddodd Bevan y gorau i addysg ffurfiol ac, ar ôl cyfnod byr yn was bach i gigydd, ymunodd â’i dad a’i frodyr o dan y ddaear ym mhyllau glo Tredegar.
At the age of thirteen, therefore, Bevan put formal education behind him and after a brief period as a butcher’s boy joined his father and brothers underground in the coalmines of Tredegar.