After the death of his mother and wife within the space of a few short hours, Teddy Roosevelt left his home on the East Coast for life as a rancher in the Dakota Badlands. The cowboys who encountered the future president with his glasses, fancy, fringed, custom buckskin outfit, high-pitched nasally voice, and the manners of a Harvard elite were skeptical. They laughed at him behind his back, calling him a dude (a derogatory slang word for an Eastern tenderfoot or city slicker). Some cowboy predicted that the “four-eyed dude with a squeaky voice” wouldn’t last a week in the Badlands. Most assum...