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Case Description
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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.
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Last Seen: Jun 05, 1974
Victim Details

Mar 31, 2010

Sep 12, 2022

Catherine

Sjoberg

67

17

65 inches

115 lbs

125 lbs

White / Caucasian

Female

Jun 05, 1974

Sullivan

Wisconsin

Jefferson County

53178

164

26342

Jefferson County Sheriff's Office

Jefferson

Wisconsin

,

74-1659

1974-06-06

Jefferson County Sheriff's Office

Brown

Green

Green

11/23/2025


Area Last Seen: