Episode 18: Nyleen Kay Marshall — Clancy, MT

What would you do if a preschooler vanished from a family picnic — and eerie letters and phone calls came from thousands of miles away?

Episode Summary

At age four, Nyleen Kay Marshall vanished from a family picnic near Maupin Creek on June 25, 1983. She was last seen playing by a beaver dam, barefoot in a yellow T‑shirt and shorts. Despite extensive searches involving helicopters, search dogs, divers, and hundreds of volunteers, no trace of her was ever found. Years later, anonymous phone calls and a letter from Wisconsin claimed she had been abducted and referenced a girl named “Kay.” Those leads never resolved the case, and Nyleen’s disappearance remains unsolved.

If you or anyone you know has information on the disappearance of Nyleen Kay Marshall on June 25, 1983, please contact the Jefferson County Sheriff’s Office at (406) 225‑4075 or the National Center for Missing & Exploited Children. Her case is still open, and even a small tip could make a big difference.

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