Peggy Jo DeCoteau

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Above: DeCoteau, circa 1979

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Vital Statistics at Time of Disappearance

  • Missing Since: July 4, 1979 from Mineral County, Montana
  • Classification: Endangered Missing
  • Date of Birth: September 20, 1938
  • Age: 40 years old
  • Height and Weight: 5'0 - 5'4, 155 pounds
  • Distinguishing Characteristics: Caucasian female. Red hair, blue eyes. DeCoteau may use the middle names Jean and/or Joan, or the last name Cashman.
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    Details of Disappearance

    DeCoteau was last seen in Mineral County, Montana on July 4, 1979. She has never been heard from again. Few details are available in her case.

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    Investigating Agency
    If you have any information concerning this case, please contact:
    Mineral County Sheriff's Department
    406-822-3555

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    Source Information
    Montana Missing Persons Clearinghouse
    NamUs

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    Updated 2 times since October 12, 2004.

    Last updated June 14, 2012; alternate height added, distinguishing characteristics updated.

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