Lincoln Ellsworth (May 12, 1880 - May 26, 1951) was a U.S. explorer.
Son of James Ellsworth and Eva Frances Butler , he was born in Chicago, Illinois.
Lincoln Ellsworth's father, James, a wealthy coal man from the United States, spent $100,000US to fund Roald Amundsen's venture from Norway to the North Pole in 1925. Ellsworth was a pilot for this trip.
Along with Amundsen, Ellsworth is credited as being the first people to have sighted the Geographic North Pole. They sighted the pole in 1926 from the airship Norge, designed and piloted by the Italian Umberto Nobile, in a flight from Svalbard to Alaska.
On November 23, 1935, Ellsworth discovered the Ellsworth Mountains of Antarctica when he made a trans-Antarctic flight from Dundee Island to the Ross Ice Shelf. He gave the descriptive name Sentinel Range, which was later named for the northern half of the Ellsworth Mountains.
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