Mark Twain
The actual name.
Saemmuan lang Horn (Samuel Langhorne Clemens) 's clinic.
Your résumé.
American, 1835-1910 (75 years old)
Major works.
The famous American writer using the pen name Mark Twain.
(Mark Twin) for that matter, the most famous is the novel story.
The adventures of Tom soyoe (The Adventure of Tom Sawyer)