Daniel-Marie Chabert de Joncaire de Clausonne

Daniel-Marie Chabert de Joncaire de Clausonne (also stylized as Daniel Joncaire, Sieur de Chabert et de Clausonne In 1750, Joncaire built a small canal above Niagara Falls to power a sawmill.) In 1757, Joncaire was promoted to lieutenant.

In 1759, he had Fort du Portage burned down and moved his garrison to reinforce Fort Niagara. On July 25, 1759, Joncaire was one of the officers who signed the surrender at the Battle of Fort Niagara.

Later life The British were relieved when Joncaire left Canada in 1761 due to his influence among the natives. Upon his return, Joncaire was implicated in the Canada Affair during the Seven Years' War and consequently imprisoned in the Bastille. During his trial, his defence was based on records which were destroyed when he burned down Fort du Portage; the court found him guilty of carelessness in his inventories of provisions in 1763 but effectively acquitted him with a warning against future recurrences.

In 1764, Joncaire went to London and unsuccessfully asked King George III for the land of the former Fort du Portage. He was prevented by Governor James Murray from trading with the native population in Niagara, but was later given permission by William Johnson and Murray's successor, Guy Carleton. He died in Detroit in 1771 and was buried on July 5.