Before the United States' westward expansion, French settlers dominated a wide swath of territory west of the Mississippi from New Orleans to St. Louis and beyond. Pulitzer-winning journalist Christian (Nicaragua: Revolution in the Family
) chronicles several generations of one of the major French families occupying this frontier territory in her fast-paced historical portrait. Born into a wealthy family, young Auguste and Pierre Chouteau moved to the town that soon became St. Louis in 1763. Their father, Pierre, one of the town's founders, came to the region from New Orleans as an explorer, but soon prospered as a fur trader. He established a very good relationship with the Osages and other Indian tribes, and he taught his sons to respect them. Auguste and the younger Pierre moved easily among the tribes to trade and sell, feeling as much at home in Indian huts as in their mansions on the Mississippi. They hosted parties for visiting American dignitaries, including Meriwether Lewis and William Clark, whose journeys reaped enormous benefits from their association with the Chouteaus. As Christian points out, the Chouteaus were instrumental in paving a smooth path in the relations between Indians and American settlers. But, as Christian observes, the settlers paid little attention to the cultivation of relationships with the Native Americans and thus encountered more resistance than the Chouteaus ever did. Christian's lively portrait of the Chouteaus opens a window on a little-known portion of early American history. Map. (Apr.)