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Missing Becker County woman identified as woman found dead in Wyoming

DETROIT LAKES, Minn. – A Becker County woman found dead in a Wyoming gravel pit in 1983 has been identified as Mary Lynn Anderson, who family members reported missing in 1986.

Anderson left her children behind with family members when she disappeared in 1982, Becker County Chief Deputy John Sieling said. Family members waited four years before filing a missing persons report with the Becker County Sheriff’s Office.

By that time, Anderson had already been found dead in a gravel pit between Sheridan and Gillette in northeast Wyoming,

Because the missing person report was filed after Anderson’s death, a connection was not made.

Still, family members provided DNA samples to the Becker County Sheriff’s Office in 2008.

Chances that Anderson’s case would be resolved were slim until a month ago, when an independent investigator working for a Canadian agency that specializes in missing persons made the connection, Sieling said.

The investigator contacted the Becker County Sheriff’s Office with the tip, and Sieling worked with Wyoming’s Division of Criminal Investigation to test DNA samples for a possible match.

Two weeks ago, tests came back positive for a match and the family was informed that Anderson and the woman found dead in Wyoming were the same, Sieling said.

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