The person at the center of this case
Kenneth Henry Sumner
Missing Person · Open
48 years waiting · since 1978
Missing Person: Kenneth Henry Sumner
Justice for Kenneth Henry Sumner — the trail went cold in 1978, but the truth hasn't.
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Key leads to think about
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witness
Lead #1Who saw Kenneth Sumner on April 24, 1978, and what were the circumstances of that encounter?
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clue
Lead #2What was Sumner's intended destination or plans for that day?
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timeline
Lead #3Why did nearly 50 years pass before this case was entered into the NamUs database?
Kenneth Henry Sumner, a 48-year-old white male, disappeared on April 24, 1978, from Gerty, Hughes County, Oklahoma. He was last seen that day and has not been located despite investigation by the Oklahoma Highway Patrol. The circumstances surrounding his disappearance remain unclear, and investigators continue to seek information from anyone who may have encountered him or have knowledge of his whereabouts.
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Official wording
Source Narrative
NamUs case MP33987. Missing person: Kenneth Henry Sumner.
Last known contact: 1978-04-24 in Gerty, Hughes, OK. Circumstances: Last seen April 24,1978.
Demographics: 48 years, Male, White / Caucasian. Physical description: 5 ft 11 in, 200 lbs, hair: Blond/Strawberry, eyes: Green.
Clothing and accessories: Accessories: Unknown; Clothing: Unknown; Eyewear: Unknown; Footwear: Unknown; Jewelry: Unknown. Investigating agency: Oklahoma Highway Patrol - Troop Z | SF-78-07.
Timeline of Events
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1978-04-24
Last Seen
Kenneth Henry Sumner was last seen on April 24, 1978 in Gerty, Hughes County, Oklahoma.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:April 24, 1978
Last Updated:July 3, 2026
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Phone: 4054252137
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Case Information
Incident:April 24, 1978
Last Updated:July 3, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 4054252137
You can remain anonymous