The Martin family - parents Ken and Barbara and their three daughters, Barbara, 14; Virginia, 13; and Sue, 11 - vanished without a trace in 1958 after going on a day trip to the mountains

Authorities are pulling submerged vehicles from the Columbia River, including a car thought to have belonged to a Portland couple who vanished in 1958 while out for a drive with their three daughters

A year later, two of the girls were found in the Columbia River, dead from drowning, near Bonneville Dam. The rest of the family — and the car — remained missing. Until, perhaps, now.