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Case Description
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Thomas Mylon Gronewold, a 19-year-old seasonal worker for the U.S. Forest Service, went missing on August 7, 1966, while floating down the Kootenai River near Libby, Montana. Gronewold and his friends were enjoying a day on the river using inner tubes when they encountered rough waters. He was thrown from his inner tube, resurfaced twice, but then disappeared beneath the water. His friends attempted to reach him but were unsuccessful. Despite searches conducted in the area, Gronewold's body was ...Read More
Last Seen: Aug 07, 1966
Links to Additional Sources (1)
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Victim Details

Jul 14, 2021

Jan 10, 2024

Thomas

Gronewold

77

19

61 inches

70 inches

185 lbs

198 lbs

White / Caucasian

Male

Aug 07, 1966

Libby

Montana

Lincoln County

No

277

105679

Lincoln County Sheriffs Office

Libby

Montana

Lincoln County

59923

512 California Avenue, Montana

4062934112

County

Law Enforcement

21LC05565

Lincoln County Sheriffs Office

na

Blond/Strawberry

Blue

Blue

12/01/2025


Area Last Seen: