Conversation so far:
What did Edmund Hillary do after Everest?
Edmund Hillary climbed ten other peaks in the Himalayas on further visits in 1956, 1960–1961, and 1963–1965.
Did Edmund Hillary reach the South Pole?
As part of the Commonwealth Trans-Antarctic Expedition he reached the South Pole overland in 1958.
What expeditions was Edmund Hillary involved with?
In January 1948, Edmund Hillary and others ascended the south ridge of Aoraki / Mount Cook, New Zealand's highest peak.

Question: Who else had reached the South Pole before Edmund Hillary?
Self-contained rewrite: Who else had reached the South Pole before Edmund Hillary?