A janitor at Francie’s second school who is described as “a ruddy white-haired man.” He is friends with the principal and has an unusual degree of authority at the school. It is rumored that Mr. Jenson is an exceptionally well-educated man but took the janitorial job because it paid better than being a schoolteacher. He assists with providing discipline, but he does not scold unruly boys. Instead, he lectures them on proper conduct and good citizenship.