The son of French immigrants who settled in Maryland, Charles Larpenteur was so eager to see the real American West that he talked himself into a job with the Rocky Mountain Fur Company in 1833. When William Sublette and Robert Campbell sold out to the American Fur Company a year later they recommended the steady and sober young Larpenteur to Kenneth McKenzie, who hired him as a clerk. For forty years, as a company man and as an independent agent,...