Finley Olsen guided trains over a bridge and around some curved track at St. Paul's Union Depot on Sunday afternoon. The tracks were wooden and not quite as big as the real ones outside. Dressed in a striped conductor's hat and overalls that matched his blue glasses, the nearly 3-year-old has been "into trains for quite a while," said his mother, Molly. Hence the trek from Menomonie, Wis., to ...