George Mallory
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 his climbing partner Andrew "Sandy" Irvine were last seen ascending near Everest's summit during the 1924 expedition, prompting speculation as to whether they reached it before they died.