Título: David Thompson (explorer)
Seção: North West Company
Background: David Thompson was born in Westminster, Middlesex, to recent Welsh migrants David and Ann Thompson. When Thompson was two, his father died. Due to the financial hardship with his mother without resources, Thompson and his older brother were placed in the Grey Coat Hospital, a school for the disadvantaged of Westminster. Thompson graduated to the Grey Coat mathematical school, where he was introduced to basic navigation skills.

Conteúdo: Thompson's decision to defect to the North West Company in 1797 without providing the customary one-year notice was not well received by his former employers. But the North West Company was more supportive of Thompson pursuing his interest in surveying and work on mapping the interior of what was to become Canada, as they judged it in the company's long-term interest. In 1797, Thompson was sent south by his employers to survey part of the Canada-US boundary along the water routes from Lake Superior to Lake of the Woods to satisfy unresolved questions of territory arising from the Jay Treaty between Great Britain and the United States after the American Revolutionary War.  By 1798 Thompson had completed a survey of 6,750 km (4,190 mi) from Grand Portage, through Lake Winnipeg, to the headwaters of the Assiniboine and Mississippi rivers, as well as two sides of Lake Superior. In 1798, the company sent him to Red Deer Lake (Lac La Biche in present-day Alberta) to establish a trading post. (The English translation of Lac la Biche: Red Deer Lake, was first recorded on the Mackenzie map of 1793.) Thompson spent the next few seasons trading based in Fort George (now in Alberta), and during this time led several expeditions into the Rocky Mountains.  In 1804, at the annual meeting of the North West Company in Kaministiquia, Thompson was made a full partner of the company. He spent the next few seasons based there managing the fur trading operations but still finding time to expand hi

user: When did Thompson entered North West company ?

assistant: Thompson's decision to defect to the North West Company in 1797 without providing the customary one-year notice was not well received by his former employers.

user: Who were Thompson's employers before the North West Company ?

assistant: CANNOTANSWER

user: What was Thompson's job at the North West Company ?

assistant: North West Company was more supportive of Thompson pursuing his interest in surveying and work on mapping the interior of what was to become Canada,

user: What were the places that Thompson's surveyed ?

assistant: Thompson was sent south by his employers to survey part of the Canada-US boundary along the water routes from Lake Superior to Lake of the Woods

user: Did he surveyed other places ?

assistant: survey of 6,750 km (4,190 mi) from Grand Portage, through Lake Winnipeg, to the headwaters of the Assiniboine and Mississippi rivers, as well as two sides of Lake Superior.

user: Did he do a third significant survey ?

assistant: finding a route to the Pacific to open up the lucrative trading territories of the Pacific Northwest.

user: When did he stop working for the North West company ?

assistant: CANNOTANSWER