In the sixth season episode "'Round Springfield", it is implied that he and Bleeding Gums Murphy are long-lost brothers; Hibbert says he has a long-lost brother who is a jazz musician and Murphy says he has a brother who is a doctor that chuckles at inappropriate times, but somehow the two do not put these clues together. However, Murphy later dies, so it will never be known for certain if they are brothers or not. Hibbert also bears a striking resemblance to the director of the Shelbyville orphanage, who mentions a personal quest to find his long-lost twin to an indifferent Homer. In the 1999 episode "Grift of the Magi", we learn that Dr. Hibbert lives next door to Police Chief Wiggum.