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Corinne Groenenberg Missing Person Case

Last seen in Modesto, California on Nov 1, 1973

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Victim Details

Jan 6, 2010

Jul 10, 2024

Corinne

Groenenberg

69

16

66 inches

115 lbs

White / Caucasian

Female

Nov 1, 1973

Modesto

California

Stanislaus County

No

20876

Modesto Police Department

Modesto

California

Stanislaus County

95354

Bonn Panyanouvong

Police Civilian Investigator

600 10th Street, California

2095729500

Local

Law Enforcement

http://www.modestogov.com/223/Police-Department

89016305

Modesto Police Department

Brown

Blue

Blue

Oct 18, 2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP4547) and 7 other sources
Corinne June Groenenberg, a 16-year-old girl, disappeared on November 1, 1973, in Modesto, California. On the day she vanished, a family friend reportedly saw her leave her home and walk toward the highway, where she began hitchhiking. The witness last saw her getting into a blue or green truck driven by an unidentified male. Corinne has not been heard from since that day, and her case remains unsolved.

At the time of her disappearance, Corinne had recently moved with her family from southern California to Modesto. She is described as having brown hair, blue eyes, a strawberry birthmark on her back, and a surgical scar on her abdomen. Despite investigations over the years, no substantial leads have emerged, and her case remains classified as endangered missing. Her family, particularly her mother, hoped she might return to their former home one day, but as of today, her whereabouts remain a mystery.
Last Seen: Nov 1, 1973

Links to Additional Sources (7)

See any mistakes? Let us know!
  • Corinne June Groenenberg - California Department of Justice
  • Corinne June Groenenberg - The Charley Project
  • Corinne Groenenberg | Whereabouts Still Unknown - WordPress.com
  • 863DFCA - Corinne June Groenenberg - Doe Network
  • Corinne Groenenberg | International Missing Persons Wiki - Fandom
  • STILL #missing #california... - California Lostnmissing - Facebook
  • Corinne Groenenberg - Pinterest

    • 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.

    82%Moderate
    Jane Doe — Livermore, California
    UP14953 • Found Mar 1, 1978
    View case
    Sex ✓Female
    Age 100%Est. 19–21 vs 16 when missing
    Race 100%White
    Location 91%42 mi away, same state
    TimingFound 4 years after last seen
    Height 100%5'6" vs 5'6"
    Weight 100%110 lb vs 115 lb
    Hair 60%Black vs Brown
    79%Possible
    Jane Doe — San Jose, California - unidentified case UP129724
    Jane Doe — San Jose, California
    UP129724 • Found Jan 23, 2021
    View case
    Sex ✓Female
    Age 100%Est. 58–72 vs 16 when missing
    Race 100%White
    Location 88%53 mi away, same state
    TimingFound 47 years after last seen
    Height 100%5'3"–5'5" vs 5'6"
    Weight 100%120–125 lb vs 115 lb
    Hair 100%Brown vs Brown
    Eyes 100%Blue vs Blue
    78%Possible
    Jane Doe — Newark, California - unidentified case UP53306
    Jane Doe — Newark, California
    UP53306 • Found Oct 24, 1985
    View case
    Sex ✓Female
    Age 100%Est. 28–42 vs 16 when missing
    Race 100%White
    Location 87%58 mi away, same state
    TimingFound 12 years after last seen
    Height 100%5'6"–5'8" vs 5'6"
    Hair 100%Brown vs Brown
    78%Possible
    Jane Doe — San Francisco, California
    UP5857 • Found Feb 20, 1979
    View case
    Sex ✓Female
    Age 100%Est. 14–25 vs 16 when missing
    Race 100%White
    Location 81%79 mi away, same state
    TimingFound 5 years after last seen
    Height 100%5'6" vs 5'6"
    Weight 26%162 lb vs 115 lb
    Eyes 100%Blue vs Blue
    77%Possible
    Jane Doe — California - unidentified case UP17572
    Jane Doe — California
    UP17572 • Found Oct 30, 1980
    View case
    Sex ✓Female
    Age 100%Est. 18–27 vs 16 when missing
    Race 100%White
    Location 75%101 mi away, same state
    TimingFound 7 years after last seen
    Height 100%5'0"–5'5" vs 5'6"
    Hair 100%Brown vs Brown
    77%Possible
    Jane Doe — San Francisco, California
    UP5906 • Found Jan 7, 1985
    View case
    Sex ✓Female
    Age 85%Est. 20–40 vs 16 when missing
    Race 100%White
    Location 81%78 mi away, same state
    TimingFound 11 years after last seen
    Height 100%5'5" vs 5'6"
    Weight 100%110 lb vs 115 lb
    Hair 100%Brown vs Brown

    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.

    Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.

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    Forum Posts (1)

    Corinne June Groenenberg was 16 when she vanished from Modesto, California, on November 1, 1973. A... ...Read More
    02/25/2024

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