Albert Bigelow Paine,
The Boys' Life of Mark Twain — Chapter 22
(1916)
“ Isaiah Sellers, the old pilot who had signed himself "Mark Twain." Mark Twain! That was the name he wanted. It was not trivial. It had all the desired qualities. Captain Sellers would never need it again. It would do no harm to keep it alive—to give it a new meaning in a new land. Clemens took a trip from Carson up to Virginia City. ”
