Am looking for a book by Ray Bradbury consisting of short stories, but the one that interests me the most is of a girl who travel through time in her mind. Possible characters name is Starr. Anyone know if this story exists, and where?

Are we talking a young girl (5 or 6) or older (say 18)? There is a story, "Star Bright," by Mark Clifton, about two young children (5-7 years of age) which appears in Asimov's "Tomorrow's Children" along with a Bradbury story. Cecy Elliott was Ray Bradbury's "Traveller," but more in distance than in time.