 Many worked in other parts of the state as cowboys herding cattle or migrated for better opportunities in the Midwest, California, or southward to Mexico.The first non-Native slave in Texas was Estevanico, a Moor from North Africa who had been captured and enslaved by the Spanish when he was a child.Estevanico accompanied his master Captain Andrés Dorantes de Carranza on the Narváez expedition, which landed at present-day Tampa.