Vital Statistics at Time of Disappearance
Details of Disappearance
Selby, who lived on the shore of Lake Cassidy east of Marysville, was reported missing Dec. 18, 1962, by her sister, Sylvia Smith.
Selby's husband became a person of interest, but was never charged. Donald Selby, an aircraft sheet-metal worker, had filed for divorce seven months before his wife's disappearance, and the divorce was granted in May 1963.
In the spring of 1963, detectives obtained a search warrant for Selby's residence. Bone fragments were uncovered in a pasture near the home, but the FBI later determined they were animal bones. Divers dragged the waters of Lake Cassidy three times, but no evidence was found.
In 1995 an acquaintance of Donald Selby called sheriff's Detective Jim Haley. The man said Selby had admitted to striking his wife with his fist, knocking her into a fireplace where she hit her head and died. He passed a polygraph test. A second informer gave the same information. The man said Selby told him he buried her body next to a culvert under a road that was scheduled to be paved. Officials used a backhoe to remove a 12-foot span of the road at the 6300 block of 97th Drive Northeast, and then dug about 30 inches to the bottom of a culvert running under the road. They didn't find anything.
Donald Selby died as a result of the Mount St. Helens eruption in 1980.
If you have any information concerning this case, please contact:
Snohomish County Sheriff's Office