Ernest Shackleton
Sir Ernest Henry Shackleton (15 February 1874 – 5 January 1922) was a British Antarctic explorer who led three British expeditions to the Antarctic.
He was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration.
Born in Kilkea, 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 of 1901–1904, from which he was sent home early on health grounds, after he and his companions Scott and Edward Adrian Wilson set a new southern record by marching to latitude 82°S. During the "Nimrod" expedition of 1907–1909, he and three companions established a new record Farthest South latitude at 88°S, only 97 geographical miles (112 statute miles or 180 kilometres) from the South Pole, the largest advance to the pole in exploration history.
Also, members of his team climbed Mount Erebus, the most active Antarctic volcano.
For these achievements, Shackleton was knighted by King Edward VII on his return home.
After the race to the South Pole ended in December 1911, with Roald Amundsen's conquest, Shackleton turned his attention to the crossing of Antarctica from sea to sea, via the pole.
To this end, he made preparations for what became the Imperial Trans-Antarctic Expedition, 1914–1917.
Disaster struck this expedition when its ship, , became trapped in pack ice and was slowly crushed before the shore parties could be landed.
The crew escaped by camping on the sea ice until it disintegrated, then by launching the lifeboats to reach Elephant Island and ultimately South Georgia Island, a stormy ocean voyage of and Shackleton's most famous exploit.
In 1921, he returned to the Antarctic with the Shackleton–Rowett Expedition, but died of a heart attack while his ship was moored in South Georgia.
At his wife's request, he was buried there.
Away from his expeditions, Shackleton's life was generally restless and unfulfilled.
In his search for rapid pathways to wealth and security, he launched business ventures which failed to prosper, and he died heavily in debt.
Upon his death, he was lauded in the press but was thereafter largely forgotten, while the heroic reputation of his rival Scott was sustained for many decades.
Later in the 20th century, Shackleton was "rediscovered", and rapidly became a role model for leadership as one who, in extreme circumstances, kept his team together in a survival story described by cultural historian Stephanie Barczewski as "incredible".
In his 1956 address to the British Science Association, Sir Raymond Priestley, one of his contemporaries, said "Scott for scientific method, Amundsen for speed and efficiency but when disaster strikes and all hope is gone, get down on your knees and pray for Shackleton", paraphrasing what Apsley Cherry-Garrard had written in a preface to "The Worst Journey in the World".
In 2002, Shackleton was voted eleventh in a BBC poll of the 100 Greatest Britons.
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Barthold A. Butenschøn Sr.
Hans Barthold Andresen Butenschøn( 27 December 1877 – 28 November 1971) was a Norwegian businessperson.
He was born in Kristiania as a son of Nils August Andresen Butenschøn and Hanna Butenschøn, and grandson of Nicolay Andresen.
Together with Mabel Anette Plahte( 1877 – 1973, a daughter of Frithjof M. Plahte) he had the son Hans Barthold Andresen Butenschøn Jr. and was through him the father- in- law of Ragnhild Butenschøn and grandfather of Peter Butenschøn.
Through his daughter Marie Claudine he was the father- in- law of Joakim Lehmkuhl, through his daughter Mabel Anette he was the father- in- law of Harald Astrup( a son of Sigurd Astrup) and through his daughter Nini Augusta he was the father- in- law of Ernst Torp.
He took commerce school and agricultural school.
He was hired in the family company N. A. Andresen& Co, and became a co-owner in 1910.
He eventually became chief executive officer.
The bank changed its name to Andresens Bank in 1913 and merged with Bergens Kreditbank in 1920.
The merger was dissolved later in the 1920s.
He was also a landowner, owning Nedre Skøyen farm and a lot of land in Enebakk.
He chaired the board of Nydalens Compagnie from 1926, having not been a board member before that.
He also chaired the supervisory council of Forsikringsselskapet Viking and Nedre Glommen salgsforening, and was a supervisory council member of Filharmonisk Selskap.
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John Vernou Bouvier III
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Emily Shackleton
Emily, Lady Shackleton (15 May 1868 – 9 June 1936) is best known as the wife of Antarctic explorer Sir Ernest Shackleton and the mother of Edward Shackleton, the Labour Party politician.
In later life, Lady Shackleton became involved in the Girl Guide movement.

Question: Who is the father-in-law of Emily Shackleton?
Answer: Henry Shackleton