http://learningenglish.voanews5aitmne6gs2btokcacixclgfl43cv27sirgbauyyjylwpdtqd.onion/a/pecos-bill-an-american-folk-tale/4773695.html
Others say Edward O'Reilly invented the character in stories he wrote for the Century Magazine in the early 1900s. The stories were collected in a book called "The Saga of Pecos Bill," published in 1923. Another writer, James Cloyd Bowman, wrote an award-winning children's book called "Pecos Bill: The Greatest Cowboy of All Time."