Admiral Penn went to sea in 1664, and remained two years on service. During this time the external effects of his son’s residence in France had worn away, and he had returned to those grave habits, and that rule of associating only with religious people, which had before given his father so much displeasure. To try the effect of absence and change of associates, Admiral Penn sent William to manage his estates in Ireland, a duty which the latter performed with satisfaction both to himself and his employer. But it chanced that, on a visit to Cork, he again attended the preaching of Thomas Loe, by whose exhortations he was deeply impressed. From this time he began to frequent the Quakers’ meetings; and in September, 1667, he was imprisoned, with others, under the persecuting laws which then disgraced our statute-book. Upon application to the higher authorities, he was soon released. Upon receiving tidings that William had connected himself with the Quakers, the Admiral immediately summoned him to England; and he soon became certified of the fact, among other peculiarities, by his son’s pertinacious adherence to the Quakers’ notions concerning what they called Hat Worship. This led him to a violent remonstrance. William Penn behaved with due respect: but in the main point, that of forsaking his associates and rule of conduct, he yielded nothing. The father confined his demands at last to the simple point, that his son should sit uncovered in the presence of himself, the King, and the Duke of York. Still William Penn felt bound to make not even this concession; and on this refusal, the Admiral again turned him out of doors.