... greatest service to Punch, as elsewhere explained, was his introduction of Charles Keene, with whom he was very intimate for more than forty years. His friendship with Leech, a fellow-Carthusian, though of course greatly his senior, is another interesting passage of his life, testified to by the many hunting sketches which, with a score or more of Keene's, decorated the billiard room of the ... — The History of "Punch" • M. H. Spielmann