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 Birthplace State Historic Site Lake. The cabin was listed on the National Register of Historic Places in 1969. Samuel Clemens, later known by the pen name Mark Twain, was born in the two-room house on November 30, 1835. The house was rented by his parents Jane Lampton Clemens (1803–1890) and John Marshall Clemens (1798–1847). Clemens spent his first four years here until the family moved to a two-story clapboard house, now memorialized as the Mark Twain Boyhood Home & Museum in Hannibal, Missouri, in 1839. Mark Twain Birthplace State Historic Site The Mark Twain Birthplace State Historic Site is a publicly owned property in