Biographie
He was a member of the south pole party on the first successful expedition to reach the South Pole.
In 1903-06 he served with Captain Amundsen in the crew of the Gjoa.
He was one of the first five people to reach the South Pole on 14 December 1911.
In 1919 he served as Master in the Maud in Roald Amundsen's Northeast Passage expedition.
Lieux nommés
Research vessel Helmer Hanssen.