Guillaume Jeanson (sometimes William Johnson, Gilliom Shanson or Guillaume Jeançonne) (August 1721 - after 1777) was an Acadian soldier and settler. [1] Following the expulsion of the Acadians, Jeanson stayed in Acadia and led a group of Acadian irregulars harrying the British.[1] By 1762, he and his family were prisoners of the British, but they were released the next year after the conclusion of the Seven Years' War.[1] Following his release, he took an oath of allegiance to the British crown and was granted a parcel of land in what is now Grosses Coques.[1]