Trenny Gibson Went On A School Trip And Never Came Home

In October 1976, 16-year-old Trenny Gibson boarded a school bus in Knoxville, Tennessee, expecting a routine day. Instead, her horticulture class was taken on a rainy hike into the Great Smoky Mountains National Park without warning. Unprepared and uneasy, Trenny borrowed a jacket from a fellow student. By mid-afternoon, she was gone. One moment she was on the trail, the next she had vanished. Nearly 50 years later, her disappearance remains unsolved. Questions linger about suspicious behaviour, missing evidence, and why the case quietly faded from view. In this episode, we speak with podcast hosts Tim Pilleri and Lance Reenstierna about their investigation into the haunting mystery of Trenny Gibson. You can listen to Tim and Lance's podcast Missing , here and watch their YouTube videos here . Listen to Claire Murphy on Missing here . CREDITS Guests: Tim Pilleri & Lance Reenstierna Host: Gemma Bath Senior Producer: Tahli Blackman Group Executive Producer: Ilaria Brophy Audio Engineer: Jacob Round GET IN TOUCH

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Trenny Gibson Went On A School Trip And Never Came Home is an episode from True Crime Conversations by Mamamia Podcasts.

This episode is 54:14 long.

This episode was published on Feb 11, 2026.

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