Margaret Ellen Fox, 14, left her Burlington, New Jersey, home on the morning of June 24, 1974, to meet a man who answered her babysitting advertisement and called himself John Marshall. A sibling saw her board a bus to Mount Holly, and witnesses later placed a girl matching her description getting off near Mill and High streets. She was never seen again.

Hours after she vanished, the Fox family received a ransom call demanding $10,000; the caller said, Your daughter’s life is the buttered topping. The number Margaret had been given traced to a payphone at a Lumberton supermarket. Investigators treated the case as an abduction and recorded the family’s incoming calls; decades later the FBI released the ransom-call audio to the public and a reward has been offered for information leading to an arrest and conviction.

Many details remain unresolved, and the investigation has been carried forward by successive law enforcement teams. Does anyone remember the Mill and High streets area in Mount Holly around June 24, 1974, or the Lumberton supermarket payphone?