Papers produced by Barker (1874-1956), University of Texas historian and educator relate to the development of the Texas State Historical Association, the American Historical Association, and other learned societies; scholarly research and publication; teaching at the university; national historical affairs; Barker's consideration of academic freedom, tenure, and the administration of The University of Texas; his studies of the Fredonian Rebellion, Texas finances (1835-1836), Houston and the 1836 Campaign, miscellaneous data and sources in Texas history, Mexican Army and Mexican sources, Goliad and the Tampico Expedition, Texas-Mexican relations (1827-1834), causes of the Texas Revolution; letters concerning the writings of Sam Houston; transcriptions of documents concerning the Alamo, James Walker Fannin, Jr., James Grant, Francis W. Johnson, and William B. Travis; Stephen F. Austin; Anglo-American settlement in Texas; Austin's Colony; Austin in Mexico; Declaration of Independence; establishment of the Republic of Texas, civil government, land speculation, and nonmilitary events of 1836; native Latin American contributions to the colonization and independence of Texas; Texas relations with Great Britain, France, and Europe; William Barker family notes; Frederick Jackson Turner notes; miscellaneous notes on state banks, Virginia Convention of 1788, economic interpretation of the Constitution, the judiciary and slavery, Velasco, East Texas, expulsion of John Bradburn, Convention of 1833, homestead law in Texas, Mexia Expedition, religion, Peter Grayson, and impressions suggested by Sam Houston's writings; and records of Barker's major publications. The papers contain correspondence, speeches, lecture notes, research notes, literary productions, class records, scrapbooks, and photographs.