Sammy and the Dinosaurs (Harry and the Dinosaurs)

Sammy discovers a box of dusty toy dinosaurs in the attic. He cleans them and takes them everywhere, including the library where he looks up all of their names, which he whispers to them. And the dinosaurs whisper their thanks. Sammy is devastated when he accidentally leaves his dinosaurs on tire train. But in the end, Sammy and his dinosaurs are reunited because he knows their names.