Ambrose, Stephen E. Undaunted Courage: Meriwether Lewis, Thomas Jefferson, and the Opening of the American West. New York: Simon and Shuster, 1995.

A comprehensive, thoroughly researched review of the Lewis and Clark Expedition

Duncan, Dayton and Ken Burns. Lewis and Clark: The Journey of the Corps of Discovery. New York: Knoph, 1997.

Flam, Faye. "Medical Frontier." The Philadelphia Inquirer (February 17, 2003).

The article is part of a series commemorating the Lewis & Clark Expedition. Provides keen insight about the medicine used on the trip.

Jones, Landon Y, ed.. Essential Lewis and Clark. New York: Ecco Press, 2000.

Select diary entries highlighting adventures.