Manuscript CollectionThe Western History Collections holds over 2,000 collections of primary textual materials on Oklahoma and the American West. These include diaries and journals, personal and official correspondence, literary manuscripts, business records, and scrapbooks. Among the subjects covered are Native American tribes headquartered in Oklahoma, pioneer and frontier life, missionary activities in Indian Territory, cowboys and the range cattle industry, Oklahoma's petroleum industry, and the history of railroads and transportation in the West.