Happy the Haplocanthosaurus ID: 422 | This file appears in: Cleveland Museum of Natural History To listen to this audio please consider upgrading to a web browser that supports HTML5 audio Harvey Webster of the Natural History Museum recounts the story of Happy, the Haplocanthosaurus | Source: Cleveland Regional Oral History Collection Download Original File SourceCleveland Regional Oral History CollectionRelation“Harvey Webster interview, 13 June 2008,” Cleveland Voices, clevelandvoices.org/items/show/2819 "Happy the Haplocanthosaurus" appears in: Cleveland Museum of Natural History