George Herbert Leigh-Mallory (18 June 1886 – 8 or 9 June 1924) was an English mountaineer who participated in the first three British Mount Everest expeditions from the early to mid-1920s. He and climbing partner Andrew "Sandy" Irvine were purportedly last seen ascending near Everest's summit during the 1924 expedition, sparking debate as to whether they reached it before they died. Wikipedia
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