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William Biocca Missing Person Case

Last seen in Santa Rosa, California on Jan 20, 1950

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Victim Details

Sep 12, 2024

Sep 24, 2024

William

Biocca

143

67

70 inches

71 inches

210 lbs

220 lbs

White / Caucasian

Male

Jan 20, 1950

Santa Rosa

California

Sonoma County

No

152652

Sonoma County Sheriff's Department

Santa Rosa

California

Sonoma County

95403

2796 Ventura Avenue, California

7075652569

County

Law Enforcement

https://www.sonomasheriff.org/

SD050913028

Sep 13, 2005

Sonoma County Sheriff's Department

3450

Unknown

Unknown

Unknown

Sep 29, 2026


Area Last Seen:

Case Description

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Summary based on the NamUs case record (MP129354) and 1 other source
William Biocca, aged 67, went missing from Santa Rosa, California, on January 20, 1950. Biocca was last seen in the Santa Rosa area, and since his disappearance, no substantial leads have emerged. His case remains unsolved and is one of the many pre-1960 missing persons cases still being discussed by family members and online communities. The details surrounding his disappearance are limited, but the case has been highlighted on forums such as Websleuths, where individuals continue to share information and hope for closure for the family.
Last Seen: Jan 20, 1950

Links to Additional Sources (1)

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  • Missing Person / NamUs #MP129354

    • Possible Unidentified Matches (6)

    Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

    77%Possible
    John Doe — San Francisco, California
    UP5893 • Found Nov 23, 1982
    View case
    Sex ✓Male
    Age 100%Est. 60–70 vs 67 when missing
    Race 100%White
    Location 90%49 mi away, same state
    TimingFound 33 years after last seen
    Height 100%5'10" vs 5'10"–5'11"
    Weight 100%200 lb vs 210–220 lb
    76%Possible
    John Doe — San Francisco, California
    UP91361 • Found Feb 5, 2022
    View case
    Sex ✓Male
    Age 100%Est. 60–70 vs 67 when missing
    Race 100%White
    Location 90%47 mi away, same state
    TimingFound 72 years after last seen
    Height 100%5'9" vs 5'10"–5'11"
    Weight 100%191 lb vs 210–220 lb
    76%Possible
    John Doe — San Rafael, California
    UP17761 • Found Nov 25, 1979
    View case
    Sex ✓Male
    Age 88%Est. 55–65 vs 67 when missing
    Race 100%White
    Location 94%34 mi away, same state
    TimingFound 30 years after last seen
    Height 100%5'10" vs 5'10"–5'11"
    Weight 97%185 lb vs 210–220 lb
    76%Possible
    John Doe — San Francisco, California
    UP5913 • Found Feb 13, 1986
    View case
    Sex ✓Male
    Age 100%Est. 60–70 vs 67 when missing
    Race 100%White
    Location 90%49 mi away, same state
    TimingFound 36 years after last seen
    Height 100%5'9" vs 5'10"–5'11"
    Weight 87%175 lb vs 210–220 lb
    76%Possible
    John Doe — Novato, California
    UP12019 • Found Jul 10, 1966
    View case
    Sex ✓Male
    Age 88%Est. 55–65 vs 67 when missing
    Race 100%White
    Location 97%22 mi away, same state
    TimingFound 16 years after last seen
    Height 84%6'1" vs 5'10"–5'11"
    Weight 83%170 lb vs 210–220 lb
    75%Possible
    John Doe — Half Moon Bay, California
    UP9569 • Found Mar 5, 1951
    View case
    Sex ✓Male
    Age 60%Est. 18–99 vs 67 when missing
    Race 100%White
    Location 84%69 mi away, same state
    TimingFound 13 months after last seen
    Height 100%6'0" vs 5'10"–5'11"
    Weight 100%190 lb vs 210–220 lb

    These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

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    Forum Posts (1)

    William Biocca was 67 when he went missing from Santa Rosa, California, on January 20, 1950. He was... ...Read More
    09/12/2024

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