Fort Tecumseh And Fort Pierre Chouteau

While company employees recorded daily activities in journals, they relayed company business as well as personal information about the individuals at the post in letter books. Letter books, which contained copies of all outgoing correspondence, were once common items at all posts on the upper Missouri, but only a few survive today. Those that do vividly illustrate the nature of commerce on the Northern Great Plains during the first half of the nineteenth century.