The Oklahoma Historical Society Research Center in Oklahoma City holds an extensive collection of records pertaining to Oklahoma's history and people. Located on Oklahoma History Center's first floor, the research center is open to the public, and there is no charge to use the facilities. 

Countless resources for genealogy research are available on microfilm and in databases, indexes and books. Records include Oklahoma military death records from WWI, WWII, Korea and Vietnam, the 1890 Oklahoma Territorial Census Index, the Dawes Final Rolls of the Five Civilized Tribes and U.S. Census records. The center is also home to a newspaper archive that boasts over 4,000 Oklahoma newspaper titles on over approximately 30,000 rolls of microfilm. This is the oldest, largest and most complete collection of newspapers in the state. 

Many records exist in the OHS Research Center about Oklahoma's homesteaders, including Federal Land Tract books and the Index to Early Oklahoma Land Tract Books. Land run maps are available, as well as plat maps and atlases. State city directories, phone books, yearbooks and annuals are also housed in the OHS Research Center. The archive collections feature a variety of resources, like historic maps, manuscripts, oral histories, over six million photographs and American Indian records. 

Computers are available to visitors to the OHS Research Center for access to other genealogical records outside the center. Subscription websites are accessible, including Ancestry, Heritage Quest and Fold3, and visitors have the ability to print from the computers. Trained staff are available to assist visitors.