Mark Twain three of his siblings survived childhood: Orion (1825–1897), Henry (1838–1858), and Pamela (1827–1904). His sister Margaret (1830–1839) died when Twain was three, and his brother Benjamin (1832–1842) died three years later. His brother Pleasant Hannibal (1828) died at three weeks of age. When he was four, Twain's family moved to Hannibal, Missouri, a port town on the Mississippi River that inspired the fictional town of St. Petersburg in "The Adventures of Tom Sawyer" and the "Adventures of Huckleberry Finn". Slavery was legal in Missouri at the time, and it became a theme in these writings. His father was an attorney
Mark Twain Riverboat is then routed back to the boiler. The riverboat is guided through the Rivers of America via an I-beam track, which is hidden under the green and brown dyed river water. The boat draws only of water, for the river is relatively shallow. At its deepest point it is no more than 8 feet near the switch at Fowler's Harbor, where it resides when not in operation. The boat uses clean, fresh water from a tank on board to prevent contaminants from the water in the Rivers of America from fouling the boiler. Mark Twain Riverboat "Mark Twain" Riverboat is