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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evidence
Lead #1What happened to the distinctive yellow Snoopy t-shirt and blue shorts Lisa was wearing? Has any clothing matching her description ever been recovered?
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witness
Lead #2Were there any credible witnesses to Lisa's activities on September 5, 1976, or in the days immediately following her disappearance?
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clue
Lead #3Why has this case remained unsolved for nearly 50 years? Are there any leads or suspects that were investigated but never fully resolved?
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 five decades later, her fate remains unknown despite investigation by the Walnut Creek Police Department. Anyone with information about Lisa's disappearance is urged to contact authorities, as even small details from that time period could prove crucial to solving this cold case.
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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 Disappearance
9-year-old Lisa Dickinson was last seen 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
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9259435844
You can remain anonymous
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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