If evidence were to be uncovered that showed that George Mallory or Andrew Irvine had reached the summit of Everest in 1924, advocates of Hillary and Norgay's first ascent maintain that the historical record should not be changed to state that Mallory and Irvine made the first ascent, displacing Hillary and Norgay. Mount Everest summiteer in 1965, Major H. P. S. Ahluwalia, claims that without photographic proof, no evidence shows that Mallory reached the summit and it would be unfair to say that the first man to scale Mount Everest was George Mallory. George Mallory's own son, John Mallory, who was only three years old when his father died, said, To me, the only way you achieve a summit is to come back alive. The job is only half done if you don't get down again. Sir Edmund Hillary's daughter, Sarah, when questioned regarding her father's take on the debate, said, His view was that he had got 50 good years out of being conqueror of Everest, and, whatever happened, he wasn't particularly worried. That's my feeling as well.