Disney riverboats - Wikipedia

Disney's Land: Walt Disney and the Invention of the Amusement Park That Changed the World: 9781501190803: Snow, Richard: Books

Complete Guide to Liberty Square Riverboat - WDW Prep School

Mark Twain Riverboat (Disneyland Park), Disney Parks Wiki

Mark Twain Riverboat, Disney Wiki

Liberty Square Riverboat And The Lone Smokestack WDWMAGIC - Unofficial Walt Disney World discussion forums

Online Museum - Dave Thomson Wing

File:The Empress Lilly at Disney Springs.jpg - Wikipedia

Mark Twain Riverboat, ILove Disney Wiki

Mark Twain Riverboat, Disney Wiki