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Ken Burns mentions that Dayton Duncan gave him this book, describing it as 'this magnificent story of Lewis and Clark, but it's also the story of his story engaging the Lewis and Clark trail.' This led to their collaboration on the Lewis and Clark film.

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Steve Rinella mentions recently interviewing Dan Flores about his new book. The discussion was about how historians feel compelled to explain the evolution of thought on certain subjects rather than just stating current understanding.

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Dayton Duncan discusses a book Roosevelt wrote after buying a ranch about his hunting adventures. In this book, Roosevelt discusses the buffalo's disappearance as both a tragedy and potentially necessary for the advance of civilization.

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Steve Rinella recommends this book to listeners wanting to learn more about Quanah Parker and his mother Cynthia Ann Parker. The recommendation comes during discussion of Parker's complex relationship with Texas Rangers and Charlie Goodnight.