After graduating, he taught History at Pontycymwr Grammar School in the Garw valley[3] and at Cardiff while studying for his M.A.
Glanmor Williams, the esteemed historian of Wales, paid Davies a fulsome tribute in his obituary of him.
Williams described him in this capacity as being 'an excellent editor: alert, punctilious and efficient' and that there was 'no doubt that he made it one of the leading publications of its kind in the country.'
During the first phase, Davies had published his first two books, 'The political writings of Richard Hooker' (1948) and 'Episcopacy and the Royal Supremacy (1950), which were derived from the research that he had previously undertaken as a postgraduate student and which Williams described as 'penetrating and thoughtful studies on major themes in British ecclesiastical history.'
Williams concluded that Davies, a 'sincere Christian and a devoted churchman, 'refused to allow his own deeply held religious convictions to cloud his judgement as an historian.'