The missing person, Louise N Zunker, had a scheduled dentist appointment for 8/17/1976 in Portage, Wisconsin. Louise's sister took her to the dentist appointment. They were in the parking lot when her sister turned around and Louise was gone. There were reported sightings of Louise walking east on Albert Street in the Mud Lake vicinity several hours after becoming separated from her sister. There has been no known contact with Louise since this time.