It seems like there have been a lot of missing persons books that have come out, or are about to come out, lately. I just found another: Finding Everett Ruess: The Life and Disappearance of a Legendary Wilderness Explorer by David Roberts, with a forward by Jon Krakauer of Into the Wild fame. You may recall that, a few years ago, they claimed to have found Everett’s skeleton (he had been robbed and murdered by Ute Indians). I actually went and resolved his Charley Project case. Then it turned out they were wrong, but I never put his case back up because I’m a lazy bastard.
Anyway, Finding Everett Ruess just came out last month and my local library has it. Both copies are checked out right now but I’ve put the book on hold.