Fur trader, explorer and diarist, Alexander Henry the younger began his career with the North West Company in 1791. Ten years later he was made a partner in that firm. Trade and exploration took him from Lake Superior to the Pacific, from the Athabasca to the Missouri rivers. In 1813 the North West Company sent overland and maritime parties to establish trade at the mouth of the Columbia River and to oust its American rivals. Henry, co-leader of the overland group, drowned there the following year. His journal is an important source of information on fur trade and Indian life in the West. *Note: This designation has been identified for review. A review can be triggered for one of the following reasons - outdated language or terminology, absence of a significant layer of history, factual errors, controversial beliefs and behaviour, or significant new knowledge.