Raymond Lambert was a Swiss mountaineer who together with Sherpa Tenzing Norgay reached an altitude of 8611 metres of Mount Everest, as part of a Swiss Expedition in May 1952. At the time it was the highest point that a climber had ever reached. There was a second Swiss expedition in autumn 1952, but a party including Lambert and Tenzing was forced to turn back at a slightly lower point. The following year Tenzing returned with Edmund Hillary to reach the summit on 29 May 1953.

Tenzing Norgay, born Namgyal Wangdi, and also referred to as Sherpa Tenzing, was a Nepalese-Indian Sherpa mountaineer. He was one of the first two people known to certainly reach the summit of Mount Everest, which he accomplished with Edmund Hillary on 29 May 1953. Time named Norgay one of the 100 most influential people of the 20th century.