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Catherine Sjoberg Missing Person Case

Last seen in Sullivan, Wisconsin on Jun 5, 1974

Victim Details

Mar 31, 2010

Sep 12, 2022

Catherine

Sjoberg

69

17

65 inches

115 lbs

125 lbs

White / Caucasian

Female

Jun 5, 1974

Sullivan

Wisconsin

Jefferson County

53178

26342

Jefferson County Sheriff's Office

Jefferson

Wisconsin

,

74-1659

Jun 6, 1974

Jefferson County Sheriff's Office

Brown

Green

Green

Oct 10, 2026


Area Last Seen:

Case Description

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Summary based on the NamUs case record (MP5658) and 11 other sources
Catherine Lynne Sjoberg, a 17-year-old from Sullivan, Wisconsin, was last seen in the early morning hours of June 5, 1974. She attended her Oconomowoc High School prom, which took place at the Concord House dance hall in Concord, Wisconsin. After a heated argument with her boyfriend around 3:00 a.m., Catherine stepped outside to get some fresh air but never returned. Despite her plans to stay at a friend's house that night, her mother didn't realize she was missing until the following day.

Catherine's disappearance has left her family and investigators puzzled for decades. At the time of her disappearance, she was wearing a long light blue prom dress with white flowers, a corsage, and gold jewelry. Known as a happy and responsible teenager, Catherine had no apparent reason to run away. She was due to participate in her high school's commencement ceremony and serve as the maid of honor at an upcoming family wedding, further indicating her intention to stay connected to her life.

In the years following her disappearance, authorities speculated about possible connections to other crimes, including the unsolved murders of two teens who vanished from the same venue six years later. However, no concrete link was ever established. Despite age-progression photos and continued investigations, Catherine's case remains unsolved, and she has never been located.
Last Seen: Jun 5, 1974

Links to Additional Sources (11)

See any mistakes? Let us know!
  • Missing Person / NamUs
  • Catherine Sjoberg - Whereabouts Still Unknown - WordPress.com
  • Wisconsin Missing Persons Advocacy
  • MISSING: Catherine Sjoberg / Abducted from Prom? - YouTube
  • PLEASE REPOST MISSING GIRL CATHERINE LYNNE SJOBERG ...
  • Catherine... - Wisconsin Missing Persons Advocacy
  • Sjoberg
  • Catherine Sjoberg - 8 of Hearts, Wisconsin - The Deck
  • Catherine Sjoberg | Clearinghouse for Missing & Exploited Children ...
  • Episode 10 – The Disappearance of Catherine Lynne Sjoberg
  • Catherine Sjoberg 16, was last seen on 06/05/1974, leaving her ...

    • Possible Unidentified Matches (1)

    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.

    75%Possible
    Jane Doe — Chicago, Illinois
    UP138168 • Found Apr 19, 2001
    View case
    Sex ✓Female
    Age 100%Est. 30–45 vs 17 when missing
    Race 100%White
    Location 77%92 mi away
    TimingFound 27 years after last seen
    Height 100%5'6" vs 5'5"
    Weight 97%139 lb vs 115–125 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 (2)

    Anyone else find it odd that there's no mention of Catherine's shoes? We know she walked out wearing... ...Read More
    02/23/2024
    Hey everyone, I've been digging into Catherine Lynne Sjoberg's case, and I stumbled across something... ...Read More
    07/12/2023

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