Albert Bigelow Paine,
The Boys' Life of Mark Twain — Chapter 24
(1916)
“ Not many would stay to hear him, but Jim Gillis and Mark Twain found him a delight. They would let him wander on in his dull way for hours, and saw a vast humor in a man to whom all tales, however trivial or absurd, were serious history. At last, one dreary afternoon, he told them about a frog—a frog that had belonged to a man named Coleman, who had trained it to jump, and how the trained frog had failed to win a wager because the owner of the rival frog had slyly loaded the trained jumper with shot. ”
