In the course of the same month he accepted an invitation to attend the Anti-Slavery Convention at Norristown, Pennsylvania. His appearance there was quite an event. Many friends of the cause, who were strangers to him, were curious to obtain a sight of him, and to hear him address the meeting. Charles C. Burleigh, in an eloquent letter to the Convention, says: "I am glad to hear that Isaac T. Hopper is to be present. That tried old veteran, with his eye undimmed, his natural strength unabated, his resolute look, and calm determined manner, before which the blustering kidnapper, and the self-important oppressor have so often quailed! With the scars of a hundred battles, and the wreaths of an hundred victories in this glorious warfare. With his example of half a century's active service in this holy cause, and his still faithful adherence to it, through evil as well as good report, and in the face of opposition as bitter as sectarian bigotry can stir up. Persecution cannot bow the head, which seventy winters could not blanch, nor the terrors of excommunication chill the heart, in which age could not freeze the kindly flow of warm philanthropy." I think it was not long after this excursion that his sister Sarah came from Maryland to visit him. She was a pleasant, sensible matron, much respected by all who knew her. I noted down at the time several anecdotes of childhood and youth, which bubbled up in the course of conversations between her and her brother. In her character the hereditary trait of benevolence was manifested in a form somewhat different from his. She had no children of her own, but she brought up, on her husband's farm, nineteen poor boys and girls, and gave most of them a trade. Nearly all of them turned out well. In the winters of 1842 and '43, Friend Hopper complied with urgent invitations to visit the Anti-Slavery Fair, in Boston; and seldom has a warmer welcome been given to any man. As soon as he appeared in Amory Hall, he was always surrounded by a circle of lively girls attracted by his frank manners, his thousand little pleasantries, and his keen enjoyment of young society. A friend of mine used to say that when she saw them clustering round him, in furs and feathered bonnets, listening to his words so attentively, she often thought it would make as fine a picture as William Penn explaining his treaty to the Indians.