David W. Marshall, PhD, is a historian and professor emeritus at Texas Tech University, with thirty-eight years of experience teaching, researching, and publishing. He is the author of several works, including Mountain Man: John Colter, the Lewis & Clark Expedition, and the Call of the American West.
Jonathan Yen was inspired by the Golden Age of Radio, and he's carried that inspiration through to commercial work, voice acting, and stage productions. From vintage Howard Fast science fiction to naturalist Paul Rosolie's true adventures in the Amazon, Jonathan loves to tell a good story.