Undaunted Courage: Meriwether Lewis, Thomas Jefferson, and the Opening of the American West   Stephen E. Ambrose
Ambrose’s very engaging, at times exciting, account of Meriwether Lewis’s involvement in the great expedition through the Louisiana Purchase. Though Ambrose seems to idolize Lewis, he is also clear-eyed about his mistakes. Sad about his suicide. Good, helpful maps. Enjoyed this history very much, learned a lot.