Article provides a detailed description of 86 historic sites in Oklahoma related to the Civil War in honor of its centennial, supported by extensive field research and consultation of sources. The list is arranged alphabetically by county.

Article describes the Union (or Federal) army and Confederate army commanders who were in charge of the different areas of Indian Territory throughout the years of the Civil War, from 1861 to 1865.

Article narrates the battles fought by American Indian and Confederate regiments against the Union during the American Civil War. The battles described were fought outside of Indian Territory, the site of modern day Oklahoma.

Article outlines the events surrounding the centennial anniversary of the Battle of Honey Springs, the largest battle fought during the Civil War within present-day Oklahoma. The battle was the catalyst for Federal troops to gain control of the territory through the capture of Fort Smith. A commemorative park was created for the battlefield.

Article relates the events of the second expedition, or invasion, led by federal forces into Indian Territory during the Civil War. William J. Willey explores the course of the military struggles that followed as an important phase of the Civil War.

Article outlines the history and accomplishments of various Black infantry regiments throughout the Civil War. This was the first time in United States history that Black men were allowed to fight as soldiers for the country.

Article relates the events of the federal military expedition of 1862 led by Colonel William Weer into Indian Territory during the Civil War. Gary N. Heath describes the battles that occurred with Confederate forces during the "Indian Expedition."

Article describes the events of the Battle of Chustenahlah, a battle waged between Confederate troops led by Colonel James McIntosh and Colonel D. H. Cooper and a Union faction of the Muscogee (Creek) Nation led by Opothleyohola near Hominy Creek in Osage County.

Article explores the various treaties the Confederate states made with American Indian nations during the Civil War. Kinneth McNeil describes the officials involved, the legal ramifications of these treaties, and the draw of equality these treaties afforded.

Article describes the consolidated units of American Indian forces during the Civil War known as the Indian Division of Brigadier-General D. H. Cooper. Allan C. Ashcraft includes an inspection report by Captain B. W. Marston highlighting the faults of Cooper's command and subsequent correspondence between Confederate officials.

Article discusses the events of the second battle of Cabin Creek between Union (or Federal) and Confederate forces during the Civil War. Marvin J. Hancock describes the battle maneuvers, the leaders of the brigades, and the impact of the Confederate victory.

Article discusses the fall of the Confederate Army in Indian Territory during the Civil War, and the details of battles and commanders who clashed during this time. Fred Hood describes American Indian participation in the war and the military campaign of Stand Watie.

Article discusses the issues and solutions that developed during the establishment and operation of the Confederate Postal System in Indian Territory in the Civil War Era. George H. Shirk constructs a picture of the events through the inclusion of correspondence from mail carriers and postmasters.

Article provides a summary of the information collected by the author from various sources about the location of the Battle of Round Mountain. Angie Debo discusses the debate over its precise location and the work of the Payne County Historical Society.

Notes and Documents column including documents about the Civil War centennial, OHS awards, the history of the Grand River Dam Authority, a tribute to public librarian Mrs. Lester O'Riley, a letter from President Herbert Hoover, a bronze portrait of Sequoyah, dedication of the restoration of the old Cherokee capital of New Echota, and the contents of the Thomas J. Harrison pamphlet collection.

Notes and Documents column including correspondence, biographical sketches, a report from the Oklahoma State University Department of History, and an announcement about the sale of rare books.

Article presents the account of the Revered John Edwards, a missionary to the Choctaws at the Wheelock Mission in Oklahoma, about his leaving the South at the beginning of the Civil War. Edwards explains various personal views, including his distaste for slavery, his faith, and reasons for leaving.

Article chronicles how the Choctaw Nation attempted to reestablished law and order in the years after the Civil War. During this time, the Choctaw lands were left barren, causing a shortage in the food supply and widespread looting of personal property.

Article illustrates the rise and fall of The Five Civilized Tribes, a tribal government located in present-day Oklahoma. The article chronicles the history of interactions between European settlers and American Indians in the region.

Notes and Documents column including a list of the life members of the Oklahoma Historical Society and a list of recent accessions to the library of the OHS.

This section includes the minutes of the quarterly meeting of the Board of Directors of the Oklahoma Historical Society that was held on July 27, 1967.

Article discusses the ideas present in Oscar Ameringer's theories of agrarian socialism and its place in Oklahoma society. H. L. Meredith explores his impact as a leader of the Socialist Party in Oklahoma, organizer, and author of socialist literature.

Article outlines how Americans felt during Cuba's fight for independence, which was proclaimed on July 15, 1895, through analyzing journalistic styles prevalent at the time and the American Government's intervention methods.

Article discusses the activities of Comanche raiders on their plunder roads that swept from Kansas to Mexico. Ralph A. Smith focuses on their exploits below the Rio Grande from 1843-1844.