The person at the center of this case
Martha Lavonne Evans
Missing Person · Open
36 years waiting · since 1990
Missing Person: Martha Lavonne Evans
Justice for Martha Lavonne Evans — the trail went cold in 1990, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1What vehicle was Martha driving that night, and has it ever been located?
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witness
Lead #2Were there any witnesses at the High Climber Room lounge who saw Martha leave or noticed anything unusual?
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timeline
Lead #3What was the expected travel time from Knappa to Warrenton, and where might she have stopped or encountered trouble?
Martha Lavonne Evans, a 32-year-old woman, disappeared on February 10, 1990, after leaving the High Climber Room lounge in Knappa, Oregon at 9:30 PM while traveling to Warrenton. She never arrived at her destination, and her disappearance remains unexplained after more than three decades. Anyone with information about her whereabouts or the circumstances of that evening is urged to contact the Oregon State Police.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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evidence
Lead #4Has any trace evidence, clothing, or personal belongings been found along the route between Knappa and Warrenton?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP9540. Missing person: Martha Lavonne Evans.
Last known contact: 1990-02-10 in Astoria, Clatsop, OR. Circumstances: On 02-10-90 at 9:30PM, Martha Evans left the High Climber Room lounge in Knappa, Oregon.
She did not arrive at her destination in Warrenton, Oregon. Demographics: 32 years, Female, White / Caucasian.
Physical description: 5 ft 3 in, 110 lbs, hair: Brown, eyes: Brown. Clothing and accessories: Clothing: Black backless bridesmaid dress; Jewelry: Twisted gold hoop earrings.
Investigating agency: Oregon State Police - Astoria Area Command | SP90002679.
Timeline of Events
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1990-02-10
21:30Last known contact
Martha Evans left the High Climber Room lounge in Knappa, Oregon at 9:30 PM heading to Warrenton
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:February 10, 1990 at 9:30 PM
Last Updated:August 27, 2026
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Any information, no matter how small, could be crucial to solving this case.
Phone: 5038610781
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Case Information
Incident:February 10, 1990 at 9:30 PM
Last Updated:August 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5038610781
You can remain anonymous