Margaret Ellen (Maggie) Fox (born February 4, 1960) was a 14-year-old American girl who vanished under suspicious circumstances in Burlington, New Jersey, in 1974. Disappearance. On June 24, 1974, Margaret Ellen Fox had plans to meet with a man who called himself "John Marshall" in regards to a babysitting job. Marshall had responded to an advertisement she had placed for her services and stated he needed a babysitter the following weekend, but postponed the first several meetings with her. He finally said that he would meet her in a red Volkswagen. Fox took a bus to get to Mount Holly.
https://en.wikipedia.org/wiki/Disappearance_of_Margaret_Ellen_Fox