Viewed in historical perspective are the business enterprises of A. P. Chouteau and others; treaties with the Indians and warfare between the Cherokees and Osage; massacres and disease epidemics; garrison life at Fort Gibson and the visits of writer Washington Irving and painter George Catlin; expeditions into the Southwest led by Colonel Henry Dodge, Captain Benjamin de Bonneville, and others; Sam Houston's sojourn in Indian country; and warfare on the Texas border.