Samuel Langhorne Clemens is better known by the pen name Mark Twain.
Mark Twain
Samuel Clemens's birth name is Samuel Clemens.
The real name of novelist Mark Twain was Samuel Langhorne Clemens.
Samuel Longhorns Clemens's pen name was Mark Twain.
Samuel Langhorne Clemens
Mark Twain, Author of Tom Sawyer's REAL name was Roger Clemens.
True. Samuel Clemens was Mark Twain's real name.
The correct spelling is Samuel Clemens. Clemens is a well-known author and humorist who wrote under the pen name Mark Twain.
Samuel "Langhorne" Clemens
His real given name was Thomas Sawyer, so named after influences in Mark Twain's life. Mark Twain, however, has a different birth name. His given name is Samuel Clemens, but later changed to Mark Twain as a pen name.
Mark Twain's real name was Samuel Langhorne Clemens. He adopted the pen name "Mark Twain" when he began writing as a journalist and humorist.
Mark Twain was the pen name used by Samuel Clemens, so both names refer to the same person. The book attributing the authorship to Samuel Clemens is simply using his real name instead of his pen name.