The person at the center of this case
Lisa Dickinson
Missing Person · Open
49 years waiting · since 1976
Missing Person: Lisa Dickinson
Justice for Lisa Dickinson — the trail went cold in 1976, but the truth hasn't.
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Key leads to think about
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person
Lead #1What circumstances led to Lisa's disappearance on that September day in 1976?
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evidence
Lead #2The distinctive yellow Snoopy shirt and specific clothing description—has anyone reported seeing a child matching this description in the years following her disappearance?
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witness
Lead #3Were there any witnesses in the Walnut Creek area who saw Lisa or noticed anything unusual on September 5, 1976?
Lisa Dickinson, a 9-year-old girl, disappeared on September 5, 1976, in Walnut Creek, California, while wearing a distinctive yellow Snoopy t-shirt and blue shorts. Nearly 50 years later, her fate remains unknown, and investigators continue to seek information about her whereabouts. Anyone with details about Lisa's disappearance is urged to contact the Walnut Creek Police Department.
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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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clue
Lead #4Has any physical evidence or remains been discovered in Walnut Creek or surrounding areas that could be connected to this case?
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 MP4537. Missing person: Lisa Dickinson.
Last known contact: 1976-09-05 in Walnut Creek, Contra Costa, CA. Circumstances: The child was last seen on September 5, 1976.
Demographics: 9 years, Female, White / Caucasian. Physical description: 4 ft 10 in, 80 lbs, hair: Blond/Strawberry, eyes: Blue.
Clothing and accessories: Clothing: Yellow crew-neck T-shirt with Snoopy and the word "Happiness" on the front, blue cutoff shorts; Footwear: White leather, three-strapped sandals. Investigating agency: Walnut Creek Police Department | 769880 | 1990-02-28.
Timeline of Events
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1976-09-05
Lisa Dickinson Last Seen
9-year-old Lisa Dickinson was last seen on September 5, 1976, in Walnut Creek, Contra Costa County, California. She was wearing a yellow crew-neck t-shirt with Snoopy and the word 'Happiness' on the front, blue cutoff shorts, and white leather three-strapped sandals.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:September 5, 1976
Last Updated:June 2, 2026
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Any information, no matter how small, could be crucial to solving this case.
Phone: 9259435844
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Case Information
Incident:September 5, 1976
Last Updated:June 2, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9259435844
You can remain anonymous