Barker served as managing editor from 1910 to 1937 of ''The Southwestern Historical Quarterly,'' published by the Texas State Historical Association. He edited the articles and wrote many himself. He showed how Texas impacted national development and westward expansion. He repudiated those who claimed that the westward expansion of the United States, the acquisition of Texas, and the Mexican Cession of 1848, were the results of a conspiracy of southerners to expand [[Slavery|slave]] territory. He also rejected those who claimed that the [[Texas War of Independence]] and the [[Mexican War]] were caused primarily by Mexico.<ref name=utex/> | Barker served as managing editor from 1910 to 1937 of ''The Southwestern Historical Quarterly,'' published by the Texas State Historical Association. He edited the articles and wrote many himself. He showed how Texas impacted national development and westward expansion. He repudiated those who claimed that the westward expansion of the United States, the acquisition of Texas, and the Mexican Cession of 1848, were the results of a conspiracy of southerners to expand [[Slavery|slave]] territory. He also rejected those who claimed that the [[Texas War of Independence]] and the [[Mexican War]] were caused primarily by Mexico.<ref name=utex/> |