Contention points George Mallory first conquered Mt. Everest.

A new contention brought forward by British mountaineer and scientist Graham Hoyland says that the first man to conquer the Mt. Everest was not Sir Edmundd Hilary. According to his finding, 29 years before Hilary’s victorious odyssey (1953) a British mountaineer George Mallory had laid his footsteps in the tallest snow cap.
George Malory and his co-mountaineer Andrew Irvin were vanished just 800 meters down the peak in June 1924. It was assumed that they died as they were on the final steps to the peak. But Hoyland through his years of research has found that they killed in a snowfall as they were ascending after conquering the Mount Everest. The body of Mallory was recovered from the North-east of the Mount in 1999.      
Yesterday Hoyland in his discourse in London Royal Geographical Society exhibited the evidences of his contention.