Abstract Thomas C. Power (1829-1923) came to Montana Territory in 1866 and established a successful mercantile and transportation network in and around Fort Benton serving miners, military posts, Indian tribes of the region, and local residents. In partnership with others he developed a transportation network of steamboats along the Upper Missouri as well as overland stage and freight routes. He moved his corporate headquarters to Helena in 1878 and had an interest in politics that paralleled his...