In reply to Doug:
I forgot to mention Lachenal, he suffered more than most after Annapurna. I think bringing the various bits together could be a risky business! Even the story about the way Lachenal's book was prepared by the principal person he wanted to criticize (Herzog) makes depressing reading....
As to whether it's either possible or desirable for all the truth to come out, hard to say really. It would be nice to think that the truth always comes out in the end and that justice is done, but reality seems a little different.
None of these stories stuck concerning René Desmaison, which is what matters at the present moment in time though.
If you look at the camptocamp link above there are two threads and his 16 year old daughter has posted a couple of messages.... Considering he died at 77, elementary mathematics shows that wasn't only an exceptional mountaineer