David Thompson (explorer)

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David Thompson
David Thompson (1770-1857).jpg
Born(1770-04-30)30 April 1770
Westminster, England
Died10 February 1857(1857-02-10) (aged 86)
OccupationExplorer and Map Maker
Spouse(s) Charlotte Small
ChildrenFanny (1801), Samuel (1804), Emma (1806), John (1808), Joshuah (1811), Henry (1813), Charlotte (1815), Elizabeth (1817), William (1819), Thomas (1822), George (1824), Mary (1827), Eliza (1829)
Parent(s)David and Ann Thompson
David Thompson signature.svg

David Thompson (30 April 1770 – 10 February 1857) was a British-Canadian fur trader, surveyor, and map-maker, known to some native peoples as Koo-Koo-Sint or "the Stargazer". Over Thompson's career, he travelled some 90,000 kilometres (56,000 mi) across North America, mapping 4.9 million square kilometres (1.9 million square miles) of North America along the way. [1] For this historic feat, Thompson has been described as the "greatest land geographer who ever lived." [2]

Surveying The technique, profession, and science of determining the positions of points and the distances and angles between them

Surveying or land surveying is the technique, profession, art and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as building corners or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales.

Cartography The study and practice of making maps

Cartography is the study and practice of making maps. Combining science, aesthetics, and technique, cartography builds on the premise that reality can be modeled in ways that communicate spatial information effectively.

North America Continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere

North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It is also considered by some to be a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.


Early life

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, 29 April 1777, the day before his seventh birthday , [3] and his older brother were placed in the Grey Coat Hospital, a school for the disadvantaged of Westminster. [4] Thompson graduated to the Grey Coat mathematical school, where he had received an education for the Royal Navy: including mathematics of trigonometry and geometry, practical navigation including using of nautical instruments, finding latitudes and longitudes and making navigational calculations from observing the sun, moon and tides and the drawing of maps and charts, taking land measurements and sketching landscapes. [5] He later built on these to make his career. In 1784, at the age of 14, the Grey Coat treasurer paid the Hudson's Bay Company for the sum of five pounds, upon which Thompson became the company’s indentured servant for a period of seven years to be trained as a clerk. [6] He set sail on 28 May of that year, and left England for North America. [7]

Westminster area of central London, within the City of Westminster

Westminster is a government district and former capital of the Kingdom of England in Central London within the City of Westminster, part of the West End, on the north bank of the River Thames. Westminster's concentration of visitor attractions and historic landmarks, one of the highest in London, includes the Palace of Westminster, Buckingham Palace, Westminster Abbey and Westminster Cathedral.

Grey Coat Hospital secondary school for girls in Westminster, London

The Grey Coat Hospital is a Church of England secondary school with academy status for girls in Westminster, London, England.

Hudsons Bay Company Canadian retail business group

The Hudson's Bay Company is a Canadian retail business group. A fur trading business for much of its existence, HBC now owns and operates retail stores in Canada, the United States, and parts of Europe, including Belgium, the Netherlands, and Germany. The company's namesake business division is Hudson's Bay, commonly referred to as The Bay. Other divisions include Galeria Kaufhof, Home Outfitters, Lord & Taylor and Saks Fifth Avenue. HBC's head office is currently located in Brampton, Ontario. The company is listed on the Toronto Stock Exchange under the symbol "HBC".

Hudson's Bay Company (HBC)

On 2 September 1784, [8] Thompson arrived in Churchill (now in Manitoba) and was put to work as a clerk/secretary, copying the personal papers of the governor of Fort Churchill, Samuel Hearne. The next year he was transferred to nearby York Factory, and over the next few years spent time as a secretary at Cumberland House, Saskatchewan, and South Branch House before arriving at Manchester House in 1787. During those years he learned to keep accounts and other records, calculate values of furs (It was noted that he also had several expensive beaver pelts at that time even when a secretary's job would not pay terribly well), track supplies and other duties.

Churchill, Manitoba Town in Manitoba, Canada

Churchill is a town in northern Manitoba, Canada, on the west shore of Hudson Bay, roughly 110 kilometres from the Manitoba–Nunavut border. It is most famous for the many polar bears that move toward the shore from inland in the autumn, leading to the nickname "Polar Bear Capital of the World" that has helped its growing tourism industry.

Manitoba Province of Canada

Manitoba is a province at the longitudinal centre of Canada. It is often considered one of the three prairie provinces and is Canada's fifth-most populous province with its estimated 1.3 million people. Manitoba covers 649,950 square kilometres (250,900 sq mi) with a widely varied landscape, stretching from the northern oceanic coastline to the southern border with the United States. The province is bordered by the provinces of Ontario to the east and Saskatchewan to the west, the territories of Nunavut to the north, and Northwest Territories to the northwest, and the U.S. states of North Dakota and Minnesota to the south.

Samuel Hearne British explorer

Samuel Hearne was an English explorer, fur-trader, author, and naturalist. He was the first European to make an overland excursion across northern Canada to the Arctic Ocean, actually Coronation Gulf, via the Coppermine River. In 1774, Hearne built Cumberland House for the Hudson's Bay Company, its first interior trading post and the first permanent settlement in present Saskatchewan.

On 23 December 1788, Thompson seriously fractured his tibia, forcing him to spend the next two winters at Cumberland House convalescing. It was during this time that he greatly refined and expanded his mathematical, astronomical, and surveying skills under the tutelage of Hudson's Bay Company surveyor Philip Turnor. It was also during this time that he lost sight in his right eye. [9]

Philip Turnor was a surveyor and cartographer for the Hudson's Bay Company.

In 1790, with his apprenticeship nearing its end, Thompson requested a set of surveying tools in place of the typical parting gift of fine clothes offered by the company to those completing their indenture. He received both. He entered the employ of the Hudson's Bay Company as a fur trader. In 1792 he completed his first significant survey, mapping a route to Lake Athabasca (where today's Alberta/Saskatchewan border is located). In recognition of his map-making skills, the company promoted Thompson to surveyor in 1794. He continued working for the Hudson's Bay Company until 23 May 1797 when, frustrated with the Hudson's Bay Company's policies over promoting the use of alcohol with indigenous people in the fur trade, he left. He walked 130 kilometres (80 mi) in the snow in order to enter the employ of the competition, the North West Company. There he continued to work as a fur trader and surveyor.

Lake Athabasca lake in northern Alberta and Saskatchewan, Canada

Lake Athabasca is located in the northwest corner of Saskatchewan and the northeast corner of Alberta between 58° and 60° N. The lake is 26% in Alberta and 74% in Saskatchewan.

Alberta Province of Canada

Alberta is a western province of Canada. With an estimated population of 4,067,175 as of 2016 census, it is Canada's fourth most populous province and the most populous of Canada's three prairie provinces. Its area is about 660,000 square kilometres (250,000 sq mi). Alberta and its neighbour Saskatchewan were districts of the Northwest Territories until they were established as provinces on September 1, 1905. The premier is Jason Kenney as of April 30, 2019.

Saskatchewan Province of Canada

Saskatchewan is a prairie and boreal province in western Canada, the only province without a natural border. It has an area of 651,900 square kilometres (251,700 sq mi), nearly 10 percent of which is fresh water, composed mostly of rivers, reservoirs, and the province's 100,000 lakes.

North West Company

An artist's impression of Thompson based on historical accounts David Thompson (explorer).jpg
An artist's impression of Thompson based on historical accounts

Thompson's decision to defect to the North West Company (NWC) 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.

North West Company

The North West Company was a fur trading business headquartered in Montreal from 1779 to 1821. It competed with increasing success against the Hudson's Bay Company in what is present-day Western Canada. With great wealth at stake, tensions between the companies increased to the point where several minor armed skirmishes broke out, and the two companies were forced by the British government to merge.

Lake Superior largest of the Great Lakes of North America

Lake Superior, the largest of the Great Lakes of North America, is also the world's largest freshwater lake by surface area, and the third largest freshwater lake by volume. The lake is shared by the Canadian province of Ontario to the north, the U.S. state of Minnesota to the west, and Wisconsin and the Upper Peninsula of Michigan to the south. The farthest north and west of the Great Lakes chain, Superior has the highest elevation of all five great lakes and drains into the St. Mary's River.

Lake of the Woods lake occupying parts of the Canadian provinces of Ontario and Manitoba and the U.S. state of Minnesota

Lake of the Woods is a lake occupying parts of the Canadian provinces of Ontario and Manitoba and the U.S. state of Minnesota. It separates a small land area of Minnesota from the rest of the United States. The Northwest Angle and the town of Angle Township can be reached from the rest of Minnesota only by crossing the lake or by traveling through Canada. The Northwest Angle is the northernmost part of the contiguous United States. Its "northwesternmost point" served as a problematic landmark in treaties defining the international border.

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. [7] 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.) [10] 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.

On 10 July 1804, at the annual meeting of the North West Company in Kaministiquia, Thompson was made a full partner of the company. He became a ‘wintering partner’, who was based in the field rather than Montreal, with two of the 92 NWC’s shares worth more than £4,000. [11] He spent the next few seasons based there managing the fur trading operations but still finding time to expand his surveys of the waterways around Lake Superior. At the 1806 company meeting, officers decided to send Thompson back out into the interior. Concern over the American-backed expedition of Lewis and Clark prompted the North West Company to charge Thompson with the task of finding a route to the Pacific to open up the lucrative trading territories of the Pacific Northwest.

Columbia River travels

David Thompson navigated the entire length of Columbia River in 1811. This map of the Columbia and its tributaries shows modern political boundaries. Columbiarivermap.png
David Thompson navigated the entire length of Columbia River in 1811. This map of the Columbia and its tributaries shows modern political boundaries.

After the general meeting in 1806, Thompson travelled to Rocky Mountain House and prepared for an expedition to follow the Columbia River to the Pacific. In June 1807 Thompson crossed the Rocky Mountains and spent the summer surveying the Columbia basin; he continued to survey the area over the next few seasons. Thompson mapped and established trading posts in Northwestern Montana, Idaho, Washington, and Western Canada. Trading posts he founded included Kootenae House, Kullyspell House and Saleesh House; the latter two were the first trading posts west of the Rockies in Idaho and Montana, respectively. [9] These posts established by Thompson extended North West Company fur trading territory into the Columbia Basin drainage area. The maps he made of the Columbia River basin east of the Cascade Mountains were of such high quality and detail that they continued to be regarded as authoritative well into the mid-20th century.

In early 1810, Thompson was returning eastward toward Montreal but, while en route at Rainy Lake, received orders to return to the Rocky Mountains and establish a route to the mouth of the Columbia. The North West Company was responding to the plans of American John Jacob Astor to send a ship around the Americas to establish a fur trading post of the Pacific Fur Company on the Pacific Coast. During his return, Thompson was delayed by an angry group of Peigan natives at Howse Pass. He was ultimately forced to seek a new route across the Rocky Mountains and found one through the Athabasca Pass.

David Thompson was the first European to navigate the full length of the Columbia River. During Thompson's 1811 voyage down the Columbia River, he camped at the junction with the Snake River on 9 July 1811. There he erected a pole and a notice claiming the country for Great Britain and stating the intention of the North West Company to build a trading post at the site. This notice was found later that year by Astor company workers looking to establish an inland fur post, contributing to their selection of a more northerly site at Fort Okanogan. The North West Company established its post of Fort Nez Percés near the Snake River confluence several years later. Continuing down the Columbia, Thompson passed the barrier of The Dalles with much less difficulty than that undergone by Lewis and Clark, as high water carried his boat over Celilo Falls and many of the rapids. On 14 July 1811, Thompson reached the partially constructed Fort Astoria at the mouth of the Columbia, arriving two months after the Pacific Fur Company's ship, the Tonquin . [12]

Before returning upriver and across the mountains, Thompson hired Naukane, a Native Hawaiian Takane labourer brought to Fort Astoria by the Pacific Fur Company's ship Tonquin. Naukane, known as Coxe to Thompson, accompanied Thompson across the continent to Lake Superior before journeying on to England.

Thompson wintered at Saleesh House before beginning his final journey back to Montreal in 1812, where the North West Company was based.

In his published journals, Thompson recorded seeing large footprints near what is now Jasper, Alberta, in 1811. It has been suggested that these prints were similar to what has since been called the sasquatch. However, Thompson noted that these tracks showed "a small Nail at the end of each [toe]", and stated that these tracks "very much resembles a large Bear's Track". [13]

Appearance and personality

David Thompson late in life DavidThompson.png
David Thompson late in life

In 1820, the English geologist, John Jeremiah Bigsby, attended a dinner party given by The Hon. William McGillivray at his home, Chateau St. Antoine, one of the early estates in Montreal's Golden Square Mile. He describes the party and some of the guests in his entertaining book The Shoe and Canoe, giving an excellent description of David Thompson:

I was well placed at table between one of the Miss McGillivray's and a singular-looking person of about fifty. He was plainly dressed, quiet, and observant. His figure was short and compact, and his black hair was worn long all round, and cut square, as if by one stroke of the shears, just above the eyebrows. His complexion was of the gardener's ruddy brown, while the expression of his deeply-furrowed features was friendly and intelligent, but his cut-short nose gave him an odd look. His speech betrayed the Welshman, although he left his native hills when very young. I might have been spared this description of Mr David Thompson by saying he greatly resembled Curran the Irish Orator... [14]

I afterwards travelled much with him, and have now only to speak of him with great respect, or, I ought to say, with admiration... No living person possesses a tithe of his information respecting the Hudson's Bay countries... Never mind his Bunyan-like face and cropped hair; he has a very powerful mind, and a singular faculty of picture-making. He can create a wilderness and people it with warring savages, or climb the Rocky Mountains with you in a snow-storm, so clearly and palpably, that only shut your eyes and you hear the crack of the rifle, or feel the snow-flakes melt on your cheeks as he talks. [14]

Marriage and children

On 10 June 1799 at Île-à-la-Crosse, Thompson married Charlotte Small, a thirteen-year-old Métis daughter of Scottish fur trader Patrick Small and a Cree mother. [15] Their marriage was formalised thirteen years later at the Scotch Presbyterian Church in Montreal on 30 October 1812. He and Charlotte had 13 children together [16] ; five of them were born before he left the fur trade. The family did not adjust easily to life in Eastern Canada; they lived in Montreal while he was traveling. Two of the children, John (aged 5) and Emma (aged 7), died of round worms, a common parasite. [7] By the time of Thompson's death, the couple had been married 57 years, the longest marriage known in Canada pre-Confederation. [7]

Later years

Map of the North-West Territory of the Province of Canada, stretching from the Fraser River on the west to Lake Superior on the east. By David Thompson, 1814. 1814ThompsonMap.jpg
Map of the North-West Territory of the Province of Canada, stretching from the Fraser River on the west to Lake Superior on the east. By David Thompson, 1814.

Upon his arrival back in Montreal, Thompson retired with a generous pension from the North West Company. He settled in nearby Terrebonne and worked on completing his great map, a summary of his lifetime of exploring and surveying the interior of North America. The map covered the wide area stretching from Lake Superior to the Pacific, and was given by Thompson to the North West Company. Thompson's 1814 map, his greatest achievement, was so accurate that 100 years later it was still the basis for many of the maps issued by the Canadian government. It now resides in the Archives of Ontario. [17]

In 1815, Thompson moved his family to Williamstown, Upper Canada, and a few years later was employed to survey the newly established borders with the United States from Lake of the Woods to the Eastern Townships of Quebec, established by Treaty of Ghent after the War of 1812. In 1843 Thompson completed his atlas of the region from Hudson Bay to the Pacific Ocean.

Afterwards, Thompson returned to a life as a land owner, but soon financial misfortune would ruin him. By 1831 he was so deeply in debt he was forced to take up a position as a surveyor for the British American Land Company to provide for his family. His luck continued to worsen and he was forced to move in with his daughter and son-in-law in 1845. He began work on a manuscript chronicling his life exploring the continent, but this project was left unfinished when his sight failed him completely in 1851.

Death and afterward

Postage stamp commemorating David Thompson's life Stamp-Thompson-1957.jpg
Postage stamp commemorating David Thompson's life

The land mass mapped by Thompson amounted to 3.9 million square kilometres (1.5 million square miles) of wilderness (one-fifth of the continent). His contemporary, the great explorer Alexander Mackenzie, remarked that Thompson did more in ten months than he would have thought possible in two years. [18]

Despite these significant achievements, Thompson died in Montreal in near obscurity on February 10, 1857, his accomplishments almost unrecognised. He never finished the book of his 28 years in the fur trade, based on his 77 field notebooks, before he died. [19] In the 1890s geologist J.B. Tyrrell resurrected Thompson's notes and in 1916 published them as David Thompson's Narrative, as part of the General Series of the Champlain Society. [20] Further editions and re-examinations of Thompson's life and works were published in 1962 by Richard Glover, in 1971 by Victor Hopwood, and in 2015 by William Moreau. [21]

David Thompson and two First Nations guides on the shore of Lac la Biche, where he landed on 4 October 1798. LLB Thompson statue.jpg
David Thompson and two First Nations guides on the shore of Lac la Biche, where he landed on 4 October 1798.

Thompson's body was interred in Montreal's Mount Royal Cemetery in an unmarked grave. It was not until 1926 that efforts by J.B. Tyrrell and the Canadian Historical Society resulted in the placing of a tombstone to mark his grave. The next year, Thompson was named a National Historic Person by the federal government, one of the earliest such designations. [22] A federal plaque reflecting that status is located at Jasper National Park, Alberta. Meantime, Thompson's achievements are central reasons for other national historic designations:

David & Charlotte Thompson's gravestone in Mount Royal Cemetery David n Charlotte Thompson grave Montreal QC IMG 6598.jpg
David & Charlotte Thompson's gravestone in Mount Royal Cemetery

In 1957, one hundred years after his death, Canada's post office department honoured him with his image on a postage stamp. The David Thompson Highway in Alberta was named in his honour, along with David Thompson High School situated on the side of the highway near Leslieville, Alberta. His prowess as a geographer is now well-recognized. He has been called "the greatest land geographer that the world has produced." [2] [7]

There is a monument dedicated to David Thompson (maintained by the state of North Dakota) near the former town site of the ghost town, Verendrye, North Dakota, located approximately 2 miles (3.2 km) north and 1 mile (1.6 km) west of Karlsruhe, North Dakota. Thompson Falls, Montana, and British Columbia's Thompson River are also named after the explorer.

David Thompson Memorial, Verendrye, North Dakota David Thompson Monument.JPG
David Thompson Memorial, Verendrye, North Dakota

The year 2007 marked the 150th year of Thompson's death and the 200th anniversary of his first crossing of the Rocky Mountains. Commemorative events and exhibits were planned across Canada and the United States from 2007 to 2011 as a celebration of his accomplishments. [23]

In 2007, a commemorative plaque was placed on a wall at the Grey Coat Hospital, the school for the disadvantaged of Westminster David Thompson attended as a boy, by English author and TV presenter Ray Mears. [24] [1]

Thompson was the subject of a 1964 National Film Board of Canada short film David Thompson: The Great Mapmaker , [25] as well as the BBC2 programme Ray Mears' Northern Wilderness (Episode 5), broadcast in November 2009. [26]

He is referenced in the 1981 folk song "Northwest Passage" by Stan Rogers.

The national park service, Parks Canada, announced in 2018 that it had named its new research vessel RV David Thompson, to be used for underwater archaeology, including sea floor mapping, and for marine science in the Pacific, Atlantic, Arctic Oceans, and the Great Lakes. It will be the main platform for research on the Wrecks of HMS Erebus and HMS Terror National Historic Site. [27]

See also


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  1. 1 2 "The Country of Adventurers: David Thompson narrated by Rick Hansen". HBC History Foundation.
  2. 1 2 David Thompson's narrative of his explorations in western America, 1784–1812 [ permanent dead link ] (edited by J.B. Tyrrell)
  3. Thompson/William E Moreau, The Wrtings of David Thompson, Volume 1, The Travels, 1850 version, The Champlain Society, 2009 p.xx
  4. "David Thompson". Hudson's Bay Company History Foundation. Retrieved 9 January 2013.
  5. Thompson/Moreau p.xxi
  6. Thompson/Moreau p.xxiii
  7. 1 2 3 4 5 Van Herk, Aritha (2007). "Travels with Charlotte" . canadiangeographic.ca. July/August. Canadian Geographic Magazine. Retrieved 27 March 2018.
  8. Thompson/Moreau p.xxiii
  9. 1 2 J. & A. Gottfred, "Art. I. The Life of David Thompson"
  10. "Lac La Biche". Atlas of Alberta Lakes. Edmonton, Alberta: University of Alberta. 2004. Archived from the original on 10 June 2015. Retrieved 27 March 2018.
  11. Thompson/Moreau p.xxxv
  12. Meinig, D.W. (1995) [1968]. The Great Columbia Plain (Weyerhaeuser Environmental Classic ed.). University of Washington Press. pp. 37–38, 50. ISBN   978-0-295-97485-9.
  13. Thompson, David. Columbia Journals. Edited by Barbara Belyea. McGill-Queen's University Press, 1994, p. 135
  14. 1 2 Bigsby, John Jeremiah (1850). The Shoe and Canoe: or Pictures of Travel in the Canadas; with Facts and Opinions on Emigration, State Policy, and Other Points of Public Interest. Chapman and Hall. pp. 113–114.
  15. Nicks, John (1985). "Thompson, David (1770–1857)". In Halpenny, Francess G (ed.). Dictionary of Canadian Biography . VIII (1851–1860) (online ed.). University of Toronto Press.
  16. Sterling, Keir B. "David Thompson." Science and Its Times, edited by Neil Schlager and Josh Lauer, vol. 4: 1700 to 1799, Gale, 2000, p. 74. Gale Virtual Reference Library, http://link.galegroup.com/apps/doc/CX3408501666/GVRL?u=lond95336&sid=GVRL&xid=df137bb4. Accessed 20 Jan. 2019.
  17. David Thompson Records Held by the Archives of Ontario
  18. Thompson, David (1916). David Thompson's Narrative of His Explorations in Western America, 1784–1812. Champlain Society.
  19. Boychuk, Rick (2007). "David Thompson's living legacy" . canadiangeographic.ca. July/August. Vol. 127 no. 4. Canadian Geographic Magazine. p. 13. Retrieved 27 March 2018.
  20. Thompson, David (1916). Tyrrell, Joseph (ed.). David Thompson's Narrative of His Explorations in Western America, 1784–1812. Champlain Society. doi:10.3138/9781442618114.
  21. Thompson, David (1962). Glover, Richard (ed.). David Thompson's Narrative, 1784–1812 (volume II). Champlain Society. doi:10.3138/9781442618237.
  22. David Thompson National Historic Person, Directory of Federal Heritage Designations, Parks Canada
  23. David Thompson Bicentennials
  24. Herbert, Ian (29 June 2007). "Briton who charted Canada honoured at home". The Independent . Retrieved 12 January 2009.
  25. David Thompson: The Great Mapmaker , National Film Board of Canada
  26. BBC Wales news report. Retrieved 25 November 2009.
  27. RV David Thompson – Parks Canada’s New Research Vessel, Parks Canada backgrounder, March 16, 2018


Further reading