Ambrose, Stephen E. Undaunted Courage: Meriwether Leis, Thomas Jefferson, and the Opening of the American West. New York: Simon and Schuster, 1996.
Appleman, Roy E. Lewis and Clark: Historic Places Associated with Their Transcontinental Exploration (1804-06). St. Louis: Louis and Clark Trail Heritage Foundation, 1993.
Bakeless, John, editor. The Journals of Lewis and Clark. New York: Mentor Books, 1964.
Barth, Gunther, editor. The Lewis and Clark Expedition: Selections from the Journals Arranged by Topic. Boston: Bedford/St. Martin’s Press, 1998.
Buckley, Jay H. William Clark: Indian Diplomat. Norman: University of Oklahoma Press, 2008.
Cruz, Paige. Down the Ohio River in 80 Days: A Lewis and Clark Eastern Legacy Commemoration. (Self-published).
Dillon, Richard. Meriwether Lewis: A Biography. New York: Coward-McCann, 1965.
Foley, William E. Wilderness Journey: The Life of William Clark. Columbia: University of Missouri Press, 2004.
Holmberg, James J., editor. Dear Brother: Letters of William Clark to Jonathan Clark. New Haven: Yale University Press, 2002.
Jackson, Donald, editor. The Letters of the Lewis and Clark Expedition with Related Documents, 1783-1852. 2 vols. Urbana: University of Illinois Press, 1978.
Jenkinson, Clay. “Meriwether Lewis on the Ohio.” The Thomas Jefferson Hour, September 24, 2019.
Jones, Landon Y. William Clark and the Shaping of the West. New York: Hill and Wang, 2004.
Kramer, Carl E. The Corps of Discovery and the Falls of the Ohio. Jeffersonville, Indiana: Sunnyside Press, 2003.
Kukla, Jon. A Wilderness so Immense: The Louisiana Purchase and the Destiny of America. New York: Alfred A. Knopf, 2003.
Lewis and Clark Trail Heritage Foundation. We Proceeded On. An essential journal, published quarterly.
Moulton, Gary E., editor. The Lewis and Clark Journals: An American Epic of Discovery, Abridgement of the Definitive Nebraska Edition. Lincoln: University of Nebraska Press, 2003.
Paton, Bruce C., M.D. Lewis and Clark: Doctors in the Wilderness. Golden, Colorado: Fulcrum Press, 2001.
Ronda, James P. Lewis and Clark among the Indians. Bicentennial edition. Lincoln: University of Nebraska Press, 1984.
Snyder, Gerald S. In the Footsteps of Lewis and Clark. Washington, D. C. National Geographic Society, 1970.
Space, Ralph S. The Lolo Trail: A History and a Guide to the Trail of Lewis and Clark. Second Edition, Missoula, Montana: Historic Montana Publishing, 2001.
Taylor, Alan, editor. Lewis and Clark: Journal to another America. St. Louis: OASIS Institute and Missouri Historical Society Press, 2003.
Thom, James Alexander. Sign-Talker: The Adventure of George Drouillard on the Lewis and Clark Expedition (novel). New York: Ballantine Books, 2000.
Tubbs, Stephenie Ambrose and Clay Strauss Jenkinson. The Lewis and Clark Companion: An Encyclopedic Guide to the Voyage of Discovery. New York: Henry Holt and Company, 2003.
von Steuben, Frederick William Baron. Baron von Steuben’s Revolutionary War Drill Manuel (Facsimile Reprint). New York: Dover Publications, Inc, 1985. (Used by Lewis and Clark to arrange their camps.)