Edmund Hillary
Sir Edmund Percival Hillary (20 July 1919 – 11 January 2008) was a New Zealand mountaineer, explorer, and philanthropist. On 29 May 1953, Hillary and Nepalese Sherpa mountaineer Tenzing Norgay became the first climbers confirmed to have reached the summit of Mount Everest. They were part of the ninth British expedition to Everest, led by John Hunt.
Oliver Wheeler
Sir Edward Oliver Wheeler MC (April 18, 1890 – March 19, 1962) was a Canadian surveyor, mountain climber and soldier. Wheeler participated in the first topographical survey of Mount Everest in 1921. As Brigadier in the British Army was appointed Surveyor General of India in 1941. He was knighted for the work he did surveying India. He was an accomplished mountain climber and on the 1921 expedition was one of the team to reach the 7000-metre North Col.