Sadly not, the copy I have is my dad’s and has same pseodonym. I remember the author who documented the story writing that he had doubts about some of Clements’ recollections e.g seeing trees out in a particular area of tundra where the author was sure there weren’t any, but when he researched it further he found out they were indeed there in a certain part, not many people knew of them. Something like that anyway. I’ve read that book so many times – there was a film made of it a few years ago but haven’t seen it yet.