Samuel Longhorns Clemens's pen name was Mark Twain.
Pseudonym is just a fancy term for "pen name".Mark Twain is the pen name. Mark Twain's real name is Samuel L. Clemens.
The correct spelling is Samuel Clemens. Clemens is a well-known author and humorist who wrote under the pen name Mark Twain.
The pen name of Samuel Clemens is Mark Twain.
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.
Samuel Langhorne Clemens is better known by the pen name Mark Twain.
The pen name Samuel Clemens used is Mark Twain.
Mark Twain was the pen name of Samuel Clemens so they were the same person.
Mark Twain was the 'pen-name' of Samuel Langhorne Clemens
Mark Twain, Author of Tom Sawyer's REAL name was Roger Clemens.
His real name was Samuel L. Clemens and he was famous for writing books under the name of Mark Twain.
Samuel Clemens was his real name. Mark Twain is a pseudonym.
Mark Twain.