 In 1687 he erected the little convent of St. John at Clerkenwell, where religious services were held for the public, but which was destroyed by a mob, 11 November 1688, during the Glorious Revolution.Father Corker himself was obliged to seek refuge on the continent.In 1691 he was made Abbot of Cismar Abbey near Lübeck and, two years later, of Lamspringe, where he had made his religious profession.