In 1847 Pierre and his brother Auguste established Fort Benton in present-day Chouteau County, Montana as the last fur trading post on the Upper Missouri River.
Pierre Boulez | Pierre Trudeau | Pierre-Auguste Renoir | Pierre Corneille | Jean-Pierre Rampal | Pierre Loti | Pierre | Pierre Teilhard de Chardin | Jean-Pierre Thiollet | Pierre Puvis de Chavannes | Pierre Cardin | Pierre Bourdieu | Pierre Amoyal | Pierre Huyghe | Pierre Bonnard | Pierre-Constant Budin | Pierre-Joseph Proudhon | Pierre Beaumarchais | Pierre Restany | Pierre Curie | Pierre Louÿs | Pierre Bayle | Marco Pierre White | Jean-Pierre Ponnelle | Jean-Pierre Jeunet | Saint-Pierre, Martinique | Saint-Pierre | Pierre Monteux | Pierre Gassendi | Pierre Clémenti |
Then in 1842 the American Fur Company declared bankruptcy, and in order to continue in the trade Rolette entered into a joint venture with Dousman, Henry Hastings Sibley, and Pierre Chouteau to organize a new company which would take its place on the upper Mississippi.
Pierre Cadet Chouteau (1789–1865), founder of posts in Upper Missouri River, including Fort Pierre, South Dakota; and in Chouteau County, Montana
Jean Pierre Chouteau, known as Pierre, was the son of Marie-Therese Bourgeois Chouteau and Pierre de Laclède de Liguest, the latter originally of Bedous in far southwestern France.
Among those speaking at the inaugural event were Governor-Elect Leon C. Phillips, Dr. M. L. Wardell of the University of Oklahoma, Mr. Thomas J. Harrison of Pryor, and Yvonne Chouteau, a descendant of Jean Pierre Chouteau.