Peggy Lynn Alt was a 17-year-old female from High Ridge, Missouri, when she was last seen at her home on March 2, 1985, just two days before her eighteenth birthday. Public missing-person records describe Peggy as a White female with brown eyes, blond or brown hair, approximately 5 feet tall and about 125 pounds, though one Missouri State Highway Patrol poster lists her height as 5 feet 4 inches. She had a burn scar on her left bicep and may have gone by her middle name, Lynn.
At the time she was last seen, she was associated with a mid-length plaid winter coat with gray cuffs, and public case materials include both a photograph from around the time she disappeared and an age-progressed image prepared years later.
The known account of Peggy’s disappearance is brief, but deeply troubling. According to public case summaries, Peggy was last seen at her family residence in High Ridge on March 2, 1985. Authorities and missing-person organizations report that she apparently packed belongings and left the home, but it has never been established whether she left by herself or whether someone else was with her. After that day, there was no confirmed contact from Peggy. The Charley Project states that she has never been heard from again, and the Missouri State Highway Patrol poster states that it is unknown whether she left alone or with a companion.
Peggy’s absence was not merely a matter of a teenager leaving home and then returning later. The information in public records indicates that her family did not receive contact from her after she vanished, and over time the case became one in which foul play or enticement was suspected. The Missouri State Highway Patrol Missing Persons Clearinghouse specifically notes that foul play or enticement is suspected, while The Charley Project classifies Peggy as endangered missing. Those details give the case a painful weight: what may have first appeared uncertain became a long-term disappearance in which the silence itself became one of the most important facts.
Peggy’s case remains listed by major missing-person sources, including NamUs and the National Center for Missing & Exploited Children. NamUs identifies the case as MP9849 and lists the date of last contact as March 2, 1985, from High Ridge, Missouri, with NCMEC case number 1168960. NCMEC’s poster states that Peggy was last seen at her home in High Ridge and notes the scar on her left arm and the possibility that she may use the nickname Lynn. The continuing presence of her case in these public databases reflects the ongoing need for information and the enduring importance of even small details from that period.
Decades later, the public record still leaves many unanswered questions: whether Peggy left the residence voluntarily, whether she was persuaded or accompanied by someone, where she may have gone after leaving High Ridge, and why she never contacted her family again. The most reliable public sources do not provide a confirmed resolution, and they continue to present her as missing. In overview, Peggy Lynn Alt’s case is the disappearance of a 17-year-old girl last seen at her High Ridge, Missouri, home on March 2, 1985; she was described as a young White female with brown eyes, blond or brown hair, a burn scar on her left bicep, and possibly using the name Lynn, and after apparently leaving her family residence with belongings, she vanished without further confirmed contact, leaving investigators and loved ones with a case in which foul play or enticement has been suspected and answers remain painfully incomplete.Last Seen: Mar 2, 1985
