<a href="https://en.wikipedia.org/wiki/Amundsen%27s_South_Pole_expedition" class="extiw" title="en:Amundsen's South Pole expedition">Amundsen Expedition</a> at the South Pole (from left to right): Roald Amundsen, Helmer Hanssen, Sverre Hassel and Oscar Wisting
Olav Bjaaland (1863-1961)<a rel="nofollow" class="external autonumber" href="http://www.nla.gov.au/apps/cdview?pi=nla.pic-an23814300&amp;fullrecord=yes">[1]</a>
1911-12-17
Amundsen, Roald: <i>The South Pole</i> (Vol II), London, John Murray 1912