Abstract T.C. Power was a Montana merchandise, transportation, mining, ranching, banking, and real estate magnate; and U.S. Senator from Montana from 1890 to 1895. Collection (1868-1950) includes personal, business, and political correspondence plus financial and legal papers of many of his business enterprises. Collection documents Power's involvement in military and Indian trade, steamboating, freighting, stage coach lines, mail contracts, cattle and sheep ranching, mining, banking, bridge...