Margaret was last seen in Burlington, New Jersey on June 24, 1974. She was planning to go to High and west Broad Streets in Mount Holly, New Jersey to have an interview with a man who called himself John Marshall.
Margaret's younger sister accompanied her to the bus stop and saw her get on. Witnesses reported seeing her near Mill and High Streets after she got off the bus in Mount Holly, but she has never been heard from again.
Margaret had advertised for a babysitting job, and "Marshall" responded to the ad on June 19. He told her he needed a babysitter for the following weekend, but he postponed meeting her several times. Finally he said he would meet her in a red Volkswagen. He gave Margaret a telephone number to reach him; the number was traced to a public phone booth at a supermarket in Lumberton, New Jersey.
In the hours after Margaret was reported missing, police started recording all phone calls placed to her residence. Once was from a man who demanded $10,000 for Margaret's safe return. He stated, "$10,000 might be a lot of bread, but your daughter's life is the buttered topping." This caller has never been identified. You can listen the call
here on the FBI website.
Margaret has never been heard from again and "John Marshall" has never been identified. Several other parents in the area complained that someone had attempted to lure their daughters with fake job offers. A suspect's 1976 confession to involvement in her disappearance was widely publicized, but turned out to be a hoax.
Margaret took piano lessons in 1974 and she liked to ride horses. She graduated from St. Paul's Grammar School in Burlington two weeks before she vanished. Her parents are now deceased, but her siblings are still alive, and some still live in the Burlington area. Her case remains unsolved.