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Missing Martha Marie Morrison
Martha, circa 1974
Missing Since 09/01/1974
Classification Endangered Missing
Age 17 years old
Distinguishing Characteristics Caucasian female.
Details of Disappearance Martha disappeared from her Portland, Oregon home on September 1, 1974. Her remains were found on October 12 in the Dole Valley area of Clark County, Washington, near the body of a young woman quickly identified as Carol Platt Valenzuela, who was 19 at the time of her death.
Martha's body went unidentified for over 30 years. Finally, in 2015, using DNA samples taken from both her deceased parents, the body was identified as hers. Her murder, and Valenzuela's, are under investigation.
Investigating Agency / Department