"Well," responded Twain, "no one has ever asked me that question before--Just kidding," he added quickly, seeing Graham's expression. "Yes, I am asked it all the time. The name was first used by an old Mississippi river pilot named Isaiah Sellers, who used to write items for the _New Orleans Picayune_, in which he told of his adventures. He signed them Mark Twain, which in the parlance of pilots is a leadsman call meaning two fathoms, or twelve feet. When I was a cub pilot, I wrote a burlesque on Captain Seller's articles and published it in a rival paper under the signature of Sargeant Fathom. Unfortunately, the captain was so hurt by the burlesque that he never wrote another article. I still feel badly about it to this day, for I would never have intentionally hurt the old gentleman's feelings. Anyway, in 1863, when I was working for the _Enterprise_ in Virginia City, Nevada, I wanted a good pen name and, while I was trying to think of one, I received the news of the death of the good captain. This brought to mind the name Mark Twain, and so I adopted the name in his honor. I signed it first in a letter from Carson City to the _Enterprise_ on February second, 1863. So now you know, my young friend," said Twain as he handed him an autographed photo of himself. "Something to keep for yourself, in remembrance of your visit here." He hugged Graham again and waved goodbye to the boy as he descended from the plane. Several distinguished-looking gentlemen stopped to introduce themselves to Graham. One said his name was Ralph Waldo Emerson and another, Nathaniel Hawthorne. Yet another, Isaac Newton, who said Graham would probably become a scientist. "Undoubtedly a physicist," said Albert Einstein. "Oh, no," interjected Eugene O'Neill. "There's no question that he will be a writer." This last remark was overheard by Charles Lindbergh, who insisted that Graham would be a flyer. Then two deep resonant voices spoke in unison: "It is obvious that the boy is a born actor." The speakers were Lionel Barrymore and John Gilbert. But Senator Charles Sumner had the final word: "Whether he becomes an actor or not is immaterial: I can assure you that this young man's ultimate destiny is in the political arena." After the distinguished group finished arguing about Graham's future vocation, they said that, since he seemed to be starting an autograph collection, they would be glad to add theirs to the list. Even John Dickens, father of Charles Dickens, signed the sheet. Then Emerson also handed him a note that he had written to--of all people--Mrs. Fields! "Don't mention this to Dickens or Twain," he said. "They'll just be jealous."