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Published online by Cambridge University Press: 27 October 2009
In 1957 the well-known Arctic historian Richard Cyriax sent a copy of some of his notes to the Hudson's Bay Company Archives. These notes, which are reproduced here in full, concerned the claim by Thomas Simpson to have discovered the Northwest Passage on an expedition from 1837 to 1839. The reasons for Simpson's belief that he had achieved this long-sought-after accomplishment are investigated, and the conclusion is arrived at that, despite his honest belief to have done so, Simpson did not, in fact, complete the Northwest Passage, as that term is normally understood.