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Case Description
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Peggy Jo DeCoteau, age 40, went missing on July 4, 1979, while staying at the Big Sky Motel in Superior, Montana, with her husband, Earl. The couple was traveling from their home in Maple Valley, Washington, to visit relatives in North Dakota. According to Earl, when he woke up around 11:00 p.m., Peggy and her belongings, including her purse and travel bag, were gone. He did not report her missing until nine days later, after he unsuccessfully attempted to locate her by contacting friends and fa ...Read More
Last Seen: Jul 04, 1979
Last Seen: Jul 04, 1979
Links to Additional Sources (10)
See any mistakes?Victim Details
May 24, 2012
Jan 10, 2024
Peggy
Decoteau
85
40
60 inches
64 inches
155 lbs
White / Caucasian
Female
Jul 04, 1979
Superior
Montana
Mineral County
No
173
2970
Mineral County Sheriff/Coroner's Office
Superior
Montana
Mineral County
59872
310 River Street, Montana
4068223555
County
Law Enforcement
79281
Mineral County Sheriff/Coroner's Office
Red/Auburn
Blue
Blue
11/08/2025
Area Last Seen:







