Cutright, Paul Russell. University of Oklahoma Press. Norman. 1976! Hardcover.
When President Thomas Jefferson dispatched Captains Meriwether Lewis and William Clark on their great exploratory expedition of the lands west of the Mississippi, the journey was destined to become the most famous and significant American lad expedition in history.
Boswell, James. Frederick A. Pottle (ed). McGraw- Hill Book Company, Inc. 1950 Hardcover. Fair Condition.
from the Yale Editions of the Private Papers of James Boswell. Now first published from the original manuscript prepared for the press, with introduction and notes by Frederick A. Pottle, sterling professor of English, Yale University with a preface by Christopher Morley.