1874-1922. Irish Antarctic explorer. In 1907-09, he commanded an expedition that reached 88 degrees 23' S latitude, located the magnetic South Pole, and climbed Mount Erebus. He was a member of Scott's Antarctic expedition 1901-04, and also commanded the expedition 1914-16 to cross the Antarctic, when he had to abandon his ship, the Endurance, crushed in the ice of the Weddell Sea. He died on board the Quest on his fourth expedition 1921-22 to the Antarctic.