In the autumn of 1988, 38-year-old Cheryl A. Duvall was a resident of Manitowoc, Wisconsin, a mother of two sons who, despite a divorce four years prior, maintained a friendly co-parenting relationship with her ex-husband. Her children were in their father's custody but would visit their mother on weekends. Described as a good mother by her ex-husband, it was considered entirely out of character for her to abandon her children. At the time she vanished, Duvall was living on a dairy farm on South
...Read MoreLast Seen: Oct 01, 1988