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.
Richard Bass
Together with Frank Wells, one-time president of The Walt Disney Company, Bass decided to pursue the adventure challenge of summiting the high point on each of the seven continents: Denali, North America; Aconcagua, South America; Mt. Elbrus, Europe; Mount Kilimanjaro, Africa; Vinson Massif, Antarctica; Mount Kosciuszko, Australia; and Mt. Everest, Asia.
The pair successfully completed all but Everest, being rebuffed there in a first attempt. Later, on his third attempt, Bass became the first person to achieve all Seven Summits on April 30, 1985. At the time, he was also the oldest person to have climbed Everest. Wells chose to forego further attempts at Everest and later died in a 1994 helicopter accident while returning from a ski trip in Nevada. He later co-wrote the book "Seven Summits" describing his achievement.