YOUNTVILLE, Calif. (AP) — Mention Julia Child and the image that comes to mind is a tall woman with a spoon in one hand, saying in a high voice, "Bon appetit!" That was Child in her heyday as a 1960s TV show host teaching Americans the art of French cooking. But a new photo exhibit at California's Napa Valley Museum Yountville documents her life in France in the years before she hosted one of America's most popular TV cooking shows. Child, a graduate of Smith College, worked during World War II for the agency that was the predecessor of the CIA.