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Lord Clydesdale and David McIntyre undertook the first successful flight over Mount Everest.

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Douglas Douglas-Hamilton, 14th Duke of Hamilton
Scottish aviator and politician (1903–1973)
Air Commodore Douglas Douglas-Hamilton, 14th Duke of Hamilton and 11th Duke of Brandon, was a Scottish aristocrat, politician and aviator. He was the first man to fly over Mount Everest.Source: Wikipedia (CC BY-SA)
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