In December 1958, Ken Martin, his wife Barbara, and their three young daughters left their home in Northeast Portland to search for Christmas greens in the Columbia River Gorge--and never returned. The Martins' disappearance spurned the largest missing persons search in Oregon history and the mystery has remained perplexingly unsolved to this day. For the past six years, JB Fisher (Portland on the Take) has pored over the case after finding...