Oklahoma is a Choctaw Indian word that means "red people." In 1803, Oklahoma was added to the United States as part of the Louisiana Purchase. In 1828, the U.S. Congress reserved Oklahoma for Native Americans and required all others to withdraw. As a result of several acts that incorporated more and more Indian tribal land into U.S. territory, Oklahoma did not become the 46th state until 1907. The drought years of the 1930s affected many rural areas of the state and created the Dust Bowl that drove thousands of farmers into far away migrations.

This guide compiles links to digital materials related to Oklahoma such as books, government documents, manuscripts, maps, motion pictures, photographs, sheet music, and sound recordings that are available throughout the Library of Congress website. In addition, it provides links to external websites focusing on Oklahoma and a bibliography containing selected works for both general and younger readers.