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Allen Clarence Theis Missing Person Case

Last seen in Lewistown, Montana on Nov 22, 2003

Victim Details

Jan 27, 2026

Jan 27, 2026

Allen

Clarence Theis

74

52

5'10 inches

160 lbs

White / Caucasian

Male

Nov 22, 2003

Lewistown

Montana

Lewistown

Fergus County Sheriff's Office

406-535-3415

07/14/2026

Case Description

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Allen Clarence Theis, a 52-year-old man from Eden Valley, Minnesota, traveled to Lewistown, Montana, in November 2003 for a hunting and rock-collecting vacation. He checked into the Super 8 motel on November 22, with the intention of staying for two nights. Theis, described as a responsible and avid outdoorsman, had informed his mother he would return home by the end of the month.

Theis failed to check out of his motel on November 24, and two days later, on November 26, he was reported ...
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Last Seen: Nov 22, 2003

Links to Additional Sources (4)

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  • Allen Clarence Theis - The Charley Project
  • Allen Clarence Theis Missing From Lewistown - Vanished.us
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    Forum Posts (2)

    Hey everyone, I've been following the Allen Theis case and something about the location where his tr... ...Read More
    07/23/2024
    Has anyone else looked into why Allen Clarence Theis had left most of his belongings in the motel ro... ...Read More
    05/11/2024
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