The Sullivan Police Department has issued an Endangered SILVER Advisory for a missing adult incident that occurred at Sullivan, at 3pm on Thursday. The endangered SILVER advisory missing adult is: 69 year old Betty Alexander, a white, female, five foot 2, 145 pounds with shoulder length brown hair and blue eyes. Authorities say that Betty Alexander may not be wearing shoes. Alexander was last seen at her residence on Thursday and no further contact with family has been made. Alexander suffers from dementia and does not have medication with her. Anyone seeing 69 year old Betty Alexander of Sullivan should immediately dial 911 to contact the nearest law enforcement agency or call the Sullivan Police Department at 573-468-8001.