Sam Allen, 30, was last seen on May 10, 1975, when he continued alone on a trail in the Kūoloa Mountain Range in Kāneʻohe, Oahu, after his wife and a friend turned back. He was described as six feet tall, about 170 pounds, with brown hair and blue eyes. A few days later a missing person report was filed with the Honolulu Police Department.

Searches by the Honolulu Fire Department and numerous private volunteers scoured the dense, rugged terrain by air and on foot. The only item recovered was Sam’s abandoned napsack, left on the trail; reports from the time did not record what clothing he had been wearing. Despite exhaustive efforts, Sam was never located and the case is filed under HPD case number 75-C25195.

Does anyone who hiked Kūoloa in May 1975 or remembers search efforts from that time have information that could help explain what happened to Sam Allen?