Note
Went to the Hudson Public Library to hear Craig John speak. Mountaineer, expedition leader, etc. His slide show was quite impressive. He had used the North Face route of Everest a couple of times, summitting in 1998. He demurred when I asked him how high he thought Mallory and Irvine reached, but he was more confident of his position that they had not climbed the Second Step. (where the Chinese attached an aluminum ladder.)