Alter, J. C. (1925). James Bridger: A Historical Narrative. Shepard Book Company.
Angel, M. (1881). History of Nevada. Thompson and West. 1
Avey, L. (2010). The Pole Creek Crossing. Author House.
Bagley, W. (2014). South Pass: Gateway to a Continent. University of Oklahoma Press. 2
Bancroft, H. H. (1888). History of California: Vol. VI, 1860–1890. The History Company.
Beck, P. N. (2004). The First Sioux War: The Grattan Fight and Blue Water Creek, 1854-1856. University Press of America.
Berwanger, E. H. (1967). The Frontier Against Slavery: Western Anti-Negro Prejudice and the Slavery Extension Controversy. University of Illinois Press.
Beveridge, T. R., & Revised by Jerry D. Vineyard. (1990). Geologic Wonders and Curiosities of Missouri. Missouri Department of Natural Resources Division of Geology and Land Survey.
Biggs, D. C. (1956). The Pony Express: Creation of the Legend. printed privately.
Bigler, D. L. (1998). Forgotten Kingdom: The Mormon Theocracy in the American West, 1847-1896. Arthur Clark Company.
Bloss, R. S. (1959). Pony Express—The Great Gamble. Howell-North.
Bradley, G. D. (1913). The Story of the Pony Express, An Account of the Most Remarkable Mail Service Ever in Existence and its Place in History. A. C. McClurg & Company.
Bratt, J. (1921). Trails of Yesterday. The University Publishing Company.
Brown, R., & Duffin, R. (1998). Graves and Sites on the Oregon and California Trails (2nd ed.). Oregon-California Trails Association.
Bryant, E. (1849). What I saw in California: Being the Journal of a Tour by the Emigrant Route and South Pass of the Rocky Mountains, Across the Continent of North America, the Great Desert Basin, and Through California in the Years 1846, 1847. D. Appleton.
Buck, R. (2015). The Oregon Trail. Simon & Schuster.
Buel, J. W. (1882). Heroes of the plains, or, Lives and wonderful adventures of Wild Bill, Buffalo Bill, Kit Carson, Capt. Payne, Capt. Jack, Texas Jack, California Joe, and other celebrated Indian fighters, scouts, hunters and guides: including a true and thrilling history of Gen. Custer’s famous “last fight” on the Little Big Horn, with Sitting Bull. N.D. Thompson,.
Burton, R. F. (1862). The City of Saints and Across the Rocky Mountains to California. Harper & Brothers.
Carter, K. B. (1947). Riders of the Pony Express (Third printing, 1952). Daughters of Utah Pioneers.
Chapman, A. (1932). The Pony Express: The Record of a Romantic Adventure in Business (reprint, New York: Cooper Square Publishers, Inc.,1971). G. P. Putnam’s Sons.
Collins, D. O. (1966). The Hanging of Bad Jack Slade (First Edition). Golden Bell Press.
Corbett, C. (2004). Orphans Preferred: The Twisted Truth and Lasting Legend of the Pony Express. Broadway Books.
Cornelius, C. (1908). Memoirs of Cornelius Cole, Ex-Senator of the United States from California. McLoughlin Brothers.
Coutant, C. G. (1899). The History of Wyoming from the Earliest Known Discoveries, Volume 1: Vol. I. Chaplin, Spafford & Mathison.
Davenport, F. G. (Ed.). (n.d.). European Treaties Bearing on the History of the United States and its Dependencies to 1648. Carnegie Institution of Washington.
Dawson, C. (1912). Pioneer Tales of the Oregon Trail and of Jefferson County. Crane & Company. 3
De Voto, B. (1942). The Year of Decision, 1846. Houghton Mifflin. 4
De Voto, B. (1952). The Course of Empire. Houghton Mifflin Harcourt.
De Voto, B. (1947). Across the Wide Missouri. Bonanza Books.
DeFelice, J. (2018). West Like Lightning: The Brief, Legendary Ride of the Pony Express (Illustrated edition). William Morrow.
DiCerto, J. J. (2002). The Saga of the Pony Express (Sixth printing, 2017). Mountain Press Publishing Company.
Dimsdale, Thos. J. (1882). The Vigilantes of Montana, Or, Popular Justice In the Rocky Mountains: Being a Correct And Impartial Narrative of the Chase, Capture, Trial And Execution of Henry Plummer’s Road Agent Band (Second). D. W. Tilton. 5
Dodge, R. I. (1877). Hunting Grounds of the Great West. Chatto & Windus.
Driggs, H. R. (1935). The Pony Express Goes Through. B. Lippincott Company.
Egan, J. (1995). Home on the Range No More: Boom and Bust in Jeffery City. In P. Roberts (Ed.), Readings in Wyoming History (2nd Revised Edition, pp. 17–26). Skyline West Press/Wyoming Almanac.
Ellis, J. (1993). Bareback! Delacorte Press.
Ely, G. S. (2016). The Texas Frontier and the Butterfield Overland Mail, 1858-1861. University of Oklahoma Press.
Faragher, J. M. (1979). Women and Men on the Overland Trail. Yale University Press.
Fike, R. E., Headley, J. W. joint author, & United States. Bureau of Land Management. Utah State Office. (1979). The Pony Express Stations of Utah in Historical Perspective. Bureau of Land Management, Utah. 6
Franzwa, G. (1982). Maps of the Oregon Trail. Patrice Press.
Frederick, J. V. (1940). Ben Holladay, the Stagecoach King: A Chapter in the Development of Transcontinental Transportation (Reprint, Lincoln: University of Nebraska Press, 1989). Arthur H. Clark Company. 7
Furniss, N. F. (1960). The Mormon Conflict: 1850–1859. Yale University Press. 8
Gallagher, W. (2016). How the Post Office Created America. Penguin Books.
Garrard, L. H. (1850). Wah-To-Yah, and the Taos Trail: or, Prairie Travel and Scalp Dances, With a Look at Los Rancheros From Muleback and the Rocky Mountain Camp-fire (Reprint, Norman: University of Oklahoma Press, Fourth Printing, 1966). H.W. Derby & Company.
Godfrey, A. (1994). Historic Resource Study: Pony Express National Historic Trail. U.S. Dept. of the Interior, National Park Service. 9