Thomas Pichon


Thomas Pichon, also known as Thomas Tyrell, was a French government agent during Father Le Loutre's War. Pichon is renowned for betraying the French, Acadian and Mi’kmaq forces by providing information to the British, which led to the fall of Beausejour. He has been referred to as "The Judas of Acadia."

Father Le Loutre's War

During Father Le Loutre's War, Pichon entered the service of secretary for, latterly reputed to be a place-seeker, who had been appointed Governor at the Fortress of Louisbourg and Île-Royale in 1751.
Jacques Prevost de la Croix dispatched Pichon to Chignecto, employing him as scrivener and subdelegate of the intendant of New France. Pichon arrived at Beauséjour on 3 Nov. 1753. For the next two years he acted as chief clerk responsible for stores. Pichon served as scribe to the commandants. Pichon also helped Father Jean-Louis Le Loutre with his writing, although Pichon's suspicions about Roman Catholicism were confirmed by the missionary and he came to despise the priest.
British commander Captain George Scott invited Pichon to Fort Lawrence to offer him monetary gain for information on the French forces. For more than a year Pichon practised espionage and subterfuge against the French under the assumed name of Tyrell. He sent Scott and his successor, Captain John Hussey, detailed accounts of French activities in Quebec and Acadia, plans of forts Beauséjour and Gaspereau, comments on the defences of Louisbourg, copies of official documents, censuses of Acadian refugees, reports on French missionaries and warnings of attacks by the Mi'kmaq and Acadians.

Battle of Beausejour

Pichon was instrumental in the British success in the Battle of Beausejour. Prior to the battle, Pichon supplied Scott with an outline of the steps necessary for their capture, which Lieutenant-Colonel Robert Monckton later used in the attack. Pichon discouraged the Acadians from joining the Mi'kmaq and retarded the strengthening of Beauséjour by advising that the British would not attack that year.
During the siege Pichon urged Acadians and the French commandant, Louis Du Pont Duchambon de Vergor, to capitulate. Before the fall of Beauséjour Pichon had made arrangements with the British to continue his spying. As a prisoner in Halifax, he passed on to Governor Charles Lawrence, a French plan for seizing Halifax.

Death and legacy

Pichon retreated to London in 1757, where he entered on an affair with the French novelist Jeanne-Marie Leprince de Beaumont, whose marriage had been annulled. Never a master of the English language, in 1769 he moved to Saint Helier, Jersey in which place he died on 22 November 1781.
Thomas Pichon left behind a very large collection of documents. They are held by the Bibliothèque municipale de Vire, in Normandy, France. His 1760 book on Cape Breton Island -- —published in both English and French shortly after the conquest of Louisbourg in 1758, was the first such history of that island.
Pichon has been called repeatedly Le Judas de l'Acadie by a 20th-century French-Canadian priest-historian, and elsewhere his conduct has been uniformly deplored. Between 2012 and 2015, historian and novelist A. J. B. Johnston made Thomas Pichon the central character is a series of three novels.

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Thomas Pichon's life is the inspiration for a series of novels by Canadian historian and novelist A. J. B. Johnston.