Content Description: From the Collection: Included in this collection are items representing the operations of several of Chouteau's predecessor companies as well as records of the later firm. Of particular note is a letter from Pierre Menard to Pierre Chouteau (April 21, 1810), written from the Three Forks of the Missouri, describing an attack on Menard's party by a group of Blackfeet. The two journals in the collection were kept by employees of the Choteau Company while operating from posts in what is now Montana. The Fort Benton...