Fact and fiction dovetail neatly in this tale of a wonderfully resolute child who finds a memorable way to convince her father that the newly-finished Brooklyn Bridge is safe to cross. Having watched the great bridge going up for most of her young life, Hannah is eager to walk it, but despite repeated, fact-laced appeals to reason (and Hannah is a positive fount of information about its materials and design), her father won’t be moved: “No little girl of mine will cross that metal monster!” Hannah finally hatches a far-fetched plan to convince him once and for all; can she persuade the renowned P.T. Barnum to march his corps of elephants across? She can, and does (actually, he was already planning to do it). Pham places Hannah, radiating sturdy confidence, within sepia-toned, exactly rendered period scenes that capture both the grandeur of the bridge in its various stages of construction, and the range of expressions on the faces of onlookers during its opening ceremonies and after. Readers will applaud Hannah’s polite persistence. (afterword, resources) (Picture book. 7-10)