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This Directory is to be used as a guideline only. It is not proof. Please consult with a Branch Genealogist.

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Loyalist Directory: John Dease

(For a short explanation of each row, click on the row title ex. "surname")

Surname : Dease
Given name : John
Rank : Medical Doctor, Captain, Superintendent of the Indian Department
Where Resettled : Montreal, Canada East (Quebec)
Status as Loyalist : Proven
Proof of Loyalty :  
Notes (Expunged, Suspended, Reinstated) :  
Regiment :  
Enlistment Date :  
Date & Place of Birth : 1741 in Ireland
Settled before war :  
Date & Place of Death : 1801
Place of Burial :  
Wife Name : Jane French (Mohawk)
m. c1779
Children : William; John, Francis, Peter & Elizabeth Chouniard; Christopher, Charles Johnson Watts
Biography : John Dease, worked for Sir William Johnson, received a large tract of land (several thousands of acres in the Hudson Valley) as a reward, fought with the UK in the American War of Independence (a band of irregulars who fought with members of the Six Nations), had his land confiscated by the new state government of New York. He later died in Montreal in 1801.
Proven Descendants : Governor Simcoe 1984.12.07; Vancouver 2009.01.19 (Warren Bell, see Family Genealogy);
Military Info :  
Loyalist Genealogy :  
Family History : John Dease was a nephew of Sir William Johnson. John's mother was Sir William's sister.

John's son, John Warren Dease, joined the North West Company (later merged with Hudson's Bay Company) and worked as a factor for them, ultimately rising to Chief Factor at Fort Spokane. He died in 1827 en route to Fort Vancouver where he is today buried. His son, William, returned to what ultimately became the Red River Colony. He was a meti. He supported Louis Riel at one point. Eventually, his homestead was burned to the ground and he emigrated to Pembina, North Dakota, where he died, as a very old man, in 1910.

Peter Warren Dease, son of Dr.John Dease, Loyalist and Jane French (Caughnawaga Mohawk). Born 1 Jan, 1788. Named after Admiral Sir Peter Warren. At age 13 engaged to XY company for a six year term. In 1804 made a clerk of the Northwest Company, and in 1821 with the amalgamation of the Northwest company and the Hudson's Bay company was appointed a chief trader along with his brother John Warren. In the period 1824-1827 he was seconded to Sir John Franklin's land expedition. Between 1836 and 1839, Dease along with Thomas Simpson carried out significant exploration along the arctic coast from Point Barrow to Boothia. He died in 1864.
Family Genealogy : Warren Bell's 2007 certificate application (PDF)
Sources : Information submitted by Warren Bell
Reserved :