Mexico had never recognized the independence of Texas, and maintained that, even if independent, the State had no claim south of the Nueces. 尤利西斯·格兰特.U．S．格兰特的个人回忆录.
Texas, as an independent State, never had exercised jurisdiction over the territory between the Nueces River and the Rio Grande. 尤利西斯·格兰特.U．S．格兰特的个人回忆录.