Scope and Contents Collection contains correspondence, clippings, copies of land documents, personal accounts, manuscript, copies of proclamations, programs, copies of war department records, accounts of Civil War battles, relating to the pioneers, governors, citizens, and communities of early Oklahoma (Indian Territory).

Scope and Contents Collection contains booklet and articles, collected and written by Robert W. DeMoss, relating to the history and location of the Battle of Round Mountain near Yale, Oklahoma.