Mary Alice Cox, 54, was last seen leaving the group home where she lived in the 100 block of Vivian Drive in Clarksville, Tennessee, on March 20, 2004, when she walked to a nearby store and never returned. She had a history of wandering and had been located by police in past episodes, but this disappearance has remained unresolved. Her purse turned up on March 23 on a riverbank about ten miles from her home, with no other obvious signs of what happened.

Authorities do not suspect foul play, and her case is classified as an endangered missing person because she has schizophrenia, bipolar disorder and emphysema and needs medication; it is believed she may have stopped taking her meds before she disappeared. Mary is white with brown hair and hazel eyes, has a small brown birthmark on her chin, a yellow cigarette stain between her index and middle fingers, and was reported wearing a watch with a stretchy band, possible clip-on earrings and Keds-style shoes. She may have used the names Troupe, Cuffman or King and there have been unconfirmed sightings in the New Providence area, near Vivian Drive, and the possibility she traveled to places where she had connections such as Nashville, Murfreesboro or Florida has been considered.

If anyone knew Mary or saw her around March 2004, please share what might help investigators.