The Prairie Traveler: A Handbook for Overland Expeditions, written at the direction of the Department of State and published by the U.S. government, has been called one of the most important works in making possible the great Western overland migration of the United States in the last half of the 19th century. There were thousands of emigrants heading west, but many of them were poorly informed and ill-prepared for the journey, and alarming numbers were reported to be perishing.
Marcy’s Prairie Traveler quickly became an indispensable guide to thousands of American overlanders in their arduous trek to California, Oregon, Utah, and other western destinations, and was a best-selling book for the remainder of the century. Andrew J. Birtle, author of U.S. Army Counterinsurgency and Contingency Operations Doctrine 1860-1941, has described The Prairie Traveler as “perhaps the single most important work on the conduct of frontier expeditions published under the aegis of the War Department.”