Leslie Anne Guthrie was 29 when she vanished from Katonah, New York, on February 5, 1977, along with her two children, 6-year-old Julie and 3-year-old Timothy. The three were last seen at about 1:30 p.m. driving away in a white 1974 Ford Maverick with a green roof, New York plate 636-WNA. At the time Leslie was separated from her husband and living with her mother in White Plains.

Leslie did not take personal belongings or a large sum of money, and investigators found no evidence she planned to leave. Timothy Sr. cooperated with authorities and was ruled out as a suspect; he later hired a private investigator. Those close to Leslie described her as having been depressed and reading about the occult. A note apologizing for her actions was found by her mother in a jewelry box.

Over the decades, theories have ranged from Leslie starting a new life with the children to a car accident in snowy conditions that left the vehicle submerged. Recent sonar searches of local reservoirs and ponds have not produced the car or the family. Anyone with information about Leslie, Julie, Timothy, or the registered 1974 Ford Maverick is urged to come forward.