Louis-Joseph Gaultier de La Vérendrye
Louis-Joseph Gaultier de La Vérendrye, explorer, cartographer, fur trader, military officer (born 9 November 1717 at Île aux Vaches, Quebec (New France); died at sea off the coast of Cape Breton 15 November 1761). Known by his title Chevalier, the youngest son of Pierre Gaultier de Varennes et de la Vérendrye led the first European exploration across the Missouri River into the Great Plains. He served New France in the War of the Austrian Succession and the Seven Years' War.