As with all great legends, Davy Crockett's has been retold many times. One could argue that there are three distinct Crocketts: the real David as he was before he became famous; the celebrity politician whose backwoods image Crockett himself created, then lost control of; and the mythic Davy we know today. Thompson follows Crockett's footsteps from the Tennessee river valley where he was born, to Washington, where he served three terms in Congress,...