Car being pulled from Columbia River might have belonged to Oregon family that vanished in 1958

Authorities will try again Friday to pull a station wagon from the Columbia River that’s believed to have belonged to an Oregon family of five who disappeared nearly 70 years ago while they were out searching for Christmas greenery.

The search for the Martin family was a national news story at the time and led some to speculate about the possibility of foul play, with a $1,000 reward offered for information about their whereabouts.

Salvage efforts were called off just before dark on Thursday and authorities said they could not provide a timetable for the removal of the car.

The station wagon thought to belong to Ken and Barbara Martin was found last fall by Archer Mayo, a diver who had been looking for it for seven years, said Mayo’s representative, Ian Costello. Mayo pinpointed the likely location and dove several times before finding the car upside-down about 50 feet (15 meters) deep, covered in mud, salmon guts, silt and mussel shells, said Costello, who announced the find Wednesday.

‘‘This is a very big development in a case that’s been on the back of Portland’s mind for 66 years,‘’ Costello told The Associated Press.

Mayo found other cars nearby, which will need to come out before the station wagon can be pulled from the river, Costello said. Pete Hughes, a Hood River County sheriff’s deputy, said one car had been previously identified and the second was an unknown Volkswagen.

‘‘We don’t know what we will find,‘’ Hughes said when asked if officials thought bodies were inside the cars.

The Martins took their daughters Barbara, 14, Virginia, 13, and Sue, 11, on a ride to the mountains on Dec. 7, 1958, to collect Christmas greenery, according to AP stories from the time. They never returned. Officials narrowed their search for the family after learning that Ken Martin had used a credit card to buy gas at a station near Cascade Locks, a small Columbia River community about 40 miles (64 kilometers) east of Portland.

‘‘Police have speculated that Martin’s red and white station wagon might have plunged into an isolated canyon or river,‘’ the AP reported. ‘’The credit card purchase was the only thing to pin-point the family’s movements.‘’

Five months after their disappearance, the body of the youngest daughter was found ‘’bobbing in a Columbia River slough,‘’ according to the AP. ‘’The body of Susan apparently floated free of the wreckage in the spring current and was washed to a back water slough near Camas, Washington," the AP wrote.

Virginia Martin’s body was found the next day about 25 miles (40 kilometers) upstream from where her sister’s was located. The other family members were never found, but the search continued.

The Martins had a 28-year-old son, Don, who was a Marine veteran and graduate student at Columbia University in New York at the time and told the AP he believed his family was dead.

‘‘It’s been a high public interest case,‘’ Hughes told the AP on Thursday. After Mayo provided part of the license plate number and other vehicle identifiers, the sheriff’s office and the Columbia Gorge major crimes team, along with the Oregon State Crime Lab, arranged to have the car pulled out, he said.

‘‘We’re not 100% sure it’s the car,‘’ Hughes said. ‘’It’s mostly encased in mud and debris, so we don’t know what to expect when we pull it out of the water today.‘’

Mayo runs a business that finds things that were lost in the river, like watches and rings, but also helps with the recovery of drowning victims, Costello said. He had been looking for a research vessel that sank in 2017 when he learned about the Martin family, Costello said.

Mayo began digging up material on the family and used modeling to pinpoint the possible location, he said.

There is a road near where the cars were found underwater. Authorities haven’t said whether they think they might find the remains of other missing people in any of the other vehicles being pulled from the river.