The only mountain climber in Britain's expeditions to climb Mount Everest three times. He died on the third expedition.
He traveled to the Alps while in college, sparking a lifelong interest in climbing.
The last sighting of Mallory and his climbing partner took place on the morning of the Mount Everest summit climb. His body was not discovered until 1999.
His father and grandfather were both clergymen.
Erik Wielhenmayer also climbed Mt. Everest - and for an additional challenge, he climbed it blind.