where did sir ernest shackleton come from?
100 Greatest Britons
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 In 1880 , when Ernest was six , Henry Shackleton gave up his life as a landowner to study medicine at Trinity College , Dublin , moving his family into the city . Four years later , the family moved again , from Ireland to Sydenham in suburban London . Partly this was in search of better professional prospects for the newly qualified doctor , but another factor may have been unease about their Anglo @-@ Irish ancestry , following the assassination by Irish nationalists of Lord Frederick Cavendish , the British Secretary for Ireland , in 1882 . 

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 Sir Ernest Henry Shackleton CVO OBE FRGS ( / ˈʃækəltən / ; 15 February 1874 – 5 January 1922 ) was a polar explorer who led three British expeditions to the Antarctic , and one of the principal figures of the period known as the Heroic Age of Antarctic Exploration . Born in Kilkea , Athy , County Kildare , Ireland , Shackleton and his Anglo @-@ Irish family moved to Sydenham in suburban south London when he was ten . His first experience of the polar regions was as third officer on Captain Robert Falcon Scott 's Discovery Expedition 1901 – 04 , from which he was sent home early on health grounds , after he and his companions Scott and Wilson set a new southern record by marching to latitude 82 ° S. 

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 Shackleton had been a junior officer on Scott 's first Antarctic expedition in the Discovery . He had been sent home on the relief ship Morning in 1903 , after a physical collapse during the expedition 's main southern journey . Scott 's verdict was that he " ought not to risk further hardships in his present state of health " . Shackleton felt this physical failure as a personal stigma , and on his return to England he was determined to prove himself , in the words of Discovery 's second @-@ in command Albert Armitage , as " a better man than Scott " . He nevertheless declined the opportunity of a swift Antarctic return as chief officer of Discovery 's second relief ship Terra Nova , after helping to fit her out ; he also helped to equip Uruguay , the ship being prepared for the relief of Otto Nordenskjold ’ s expedition , stranded in the Weddell Sea . During the next few years , while nursing intermittent hopes of resuming his Antarctic career , he pursued other options . In 1906 he was working for the industrial magnate Sir William Beardmore as a public relations officer . 

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 When Shackleton returned to England in May 1917 , Europe was in the midst of the First World War . Suffering from a heart condition , made worse by the fatigue of his arduous journeys , and too old to be conscripted , he nevertheless volunteered for the army . Repeatedly requesting posting to the front in France , he was by now drinking heavily . In October 1917 , he was sent to Buenos Aires to boost British propaganda in South America . Unqualified as a diplomat , he was unsuccessful in persuading Argentina and Chile to enter the war on the Allied side . He returned home in April 1918 . On 22 July 1918 , he received a temporary army commission in the rank of major . 

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 Shackleton 's first choices for the boat 's crew were Worsley and Tom Crean — the latter , he said , " begged to go " . Crean was a shipmate from the Discovery Expedition , 1901 – 04 , and had also been with Scott 's Terra Nova Expedition in 1910 – 13 , where he had distinguished himself on the fatal polar march . Shackleton was confident that Crean would persevere to the bitter end , and had great faith in Worsley 's skills as a navigator , especially his ability to work out positions in difficult circumstances . Worsley later wrote : " We knew it would be the hardest thing we had ever undertaken , for the Antarctic winter had set in , and we were about to cross one of the worst seas in the world " . 
