Immediately following their marriage, and in defiance of the custom of the time, Gaboury travelled to the west with her new husband. They went first to the area near the confluence of the Assiniboine and Red Rivers near what would later become the Red River Colony, and, eventually, modern Winnipeg, Manitoba. They wintered at a Métis encampment near Pembina, where the first of her eight children was born on 6 January 1807. The following spring, the Lagimodières travelled to the valley of the Saskatchewan River, settling eventually in what is now northern Saskatchewan, where they remained until 1811, living a semi-nomadic lifestyle among other French-Canadian trappers and their native wives. During this period, Marie-Anne accompanied her husband on many trapping and buffalo hunting expeditions, often venturing as far west as present-day Alberta. Her second child was born on the open prairie shortly after her horse had bolted towards a herd of buffalo, and on another occasion she fought and shot a large bear that had attacked one of their companions. The young family was once taken prisoner while trapping by Tsuu T'ina tribesmen because of their association with local Cree. Although they managed to escape on horseback, they were pursued for five days until reaching the safety of Fort des Prairie near modern Edmonton, Alberta. Before his marriage, Jean-Baptiste had previously been involved marriage 'à la façon du pays' with a native woman who had borne his children. Marie-Anne was tolerant and accepting of the children arising from this previous relationship, although the other woman was jealous and reportedly threatened to poison her. Despite this incident, the Lagimodières generally had good relationships with the Aboriginal peoples they encountered. Marie-Anne was often regarded as an object of curiosity by the Natives during her travels, as she was invariably the first white woman they had ever seen – some were even led to believe that she possessed supernatural powers.
Return to the Red River
On hearing that Lord Selkirk was establishing a permanent colony at the Red River, they returned to help establish the new Red River Colony in the spring of 1812. The early history of the settlement was characterized by struggles between the Hudson's Bay Company and its rival, the North West Company, culminating in the Battle of Seven Oaks in 1816. Although the Lagimodières managed to avoid involvement with the violent confrontations, Jean-Baptiste was asked by HBC representative Colin Robertson to take news of the events to Lord Selkirk. Over the winter of 1815–1816, Lagimodière travelled over 2,900 kilometers on horseback and on foot in fulfillment of this mission. During this time, Marie-Anne was obliged to seek shelter among the aboriginal tribes when the Nor'Westers took possession of Fort Douglas. On his return from the east, Jean-Baptiste was taken prisoner by the Nor'Westers and was imprisoned in Fort William until August 1816. The Lagimodières were not reunited until September 1816, after the unrest had subsided. In recognition of his service, Lord Selkirk awarded Jean-Baptiste a tract of land near the Red River, which the Lagimodières successfully homesteaded for many years. They had six more children, including, in 1822, Julie Lagimodière, the futuremother of Louis Riel. Dying at age 95 in 1875, Marie-Anne lived to see Manitoba become part of the Canadian Confederation following Riel's actions during the Red River Rebellion of 1869–1870.
