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Case Description
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On October 8, 1976, 16-year-old Trenny Lynn Gibson, a sophomore at Bearden High School in Knoxville, Tennessee, vanished during a school field trip to the Great Smoky Mountains National Park. She was one of about 40 students on a trip for an ornamental horticulture class. The group was hiking to Andrews Bald, and during the hike, the students separated into smaller groups. Gibson was seen hiking with various classmates at different times throughout the day.

The last confirmed sighting o ...Read More
Last Seen: Oct 08, 1976
Victim Details

Jan 28, 2026

Jan 28, 2026

Trenny

Lynn Gibson

16

16

5'3 inches

115 lbs

White

Female

Oct 08, 1976

Great Smoky Mountains National Park

Tennessee

Great Smoky Mountains Nat

Tennessee Bureau Of Investigation

615-744-4000

01/28/2026