Samuel Thomas was a hard man, perhaps the secret of his business success, and his tastes were simple. He could never forget the hardships through which he had had to pass, and as the above quotation indicates, he was unable to shake off the fear of failure. A Welsh Baptist, he managed his household according to the "Protestant work ethic". This seems to have been its own reward, for Samuel attained civic office as High Constable of Merthyr, then the roughest town in Wales.