Dease Peter 
(01.01.1788–17.01.1863)

Canadian fur merchant, arctic explorer. 
Born in Michiliamakkinak on Lake Michigan, raised in Montreal. He began his service in the North-West Company and for several years before the merger of this company and the Hudson Bay Company in 1821 lived in the Mackenzie River district. After consolidation, Dis became the main merchant in the Hudson's Bay Company. In 1825 he was entrusted with the food supply of the second expedition of J. Franklin, in 1831 he replaced U. Conolly as the manager of the district of New Caledonia. 
While working for the Company, Dis experienced all the difficulties and hardships that befell an Arctic traveler, he knew the language and customs of the Eskimos, and acquired the skills and abilities necessary to work in the Arctic. It is these qualities that determined his appointment as the leader of an expedition organized by the head of the Company, D. Pelly, with the aim of surveying the Arctic coast of North America. His companion was T. Simpson - nephew of Governor J. Simpson. 
During 1837–1839 two previously unexplored sections of the coast were mapped: the western - between Cape Barrow and Cape Povorny in the eastern part of the Hud Delta, which J. Franklin reached in 1821, and the eastern - from the mouth of the Mednorudnaya River to the western coast of the Butiya Peninsula. 
Travelers descended from Fort Chipevayan on Lake Athabasca along the Great Slave and Mackenzie rivers, reached the sea and walked west along the coast, breaking 500 km — more than the G. Franklin party in 1826. 
They wintered in 1837–1838 on the shore of the Great Bear Lake and in the spring went to the mouth of the Copper Mine River. Having reached it, we went along the coast to the east, repeated the shooting of Franklin to Cape Povorny and went deep into an unexplored area of the coast. Moving on foot along the coast, seen in the north Victoria Island. 
After wintering again on the banks of the Bolshoi Medvezhiy in the following 1839, the boats “Castor” and “Pollux” passed to the mouth of the Big Fish River, studied by J. Back in 1833–1835, and further to the mouth of a small river in the southern parts of the Boothia peninsula, which was named Castor and Pollux. On the way back we visited King William Island, where after nine years Franklin's expedition will find its end. 
The Simpson and Dis expedition traveled 2,400 km in boats, which was a record for the Arctic. The results are superior to what was achieved by their predecessors in the area, but its leaders did not receive due recognition, although Simpson was awarded the gold medal of the London Geographical Society. At Simpson and Dis in their homeland, they were looked upon as simple industrialists who were not worthy of being placed on a par with naval officers. 
In 1840, Dis went to England, from where he returned to Canada only three years later. He left the service and settled in his estate in Cote- Saint-Catherine near Montreal, where he lived until his death. He was buried in Mount Royal Cemetery, Quebec, Canada.

Cape West of Queen Maud Bay in northern Canada in the Beaufort Sea.

Strait between Victoria Island and the North American mainland. Named T. Simpson in 1838. 
A bay on the north coast of Alaska near Cape Barrow. It was opened by the expedition of P. Dis and T. Simpson in 1837. 
Bay (Dis-Arm) in the northern part of the Great Bear Lake in Canada. Opened and named in 1825 by D. Richardson.