Statistics for occurrence #1 of “Mexican territory” in chapter 14 of Colonel William Preston Johnston, The Life of General Albert Sidney Johnston : His Service in the Armies of the United States, the Republic of Texas, and the Confederate States.:

...oneer leader of a mixed multitude in their passage over the desert, Brigham Young appears at his best. He showed great energy, skill, and decision, and, when he had fairly crossed the boundary into Mexican territory , he set up his standard. The Mormons from the origin of their sect have tried to preserve every possible analogy to the Hebrews; and this memorable migration out of Egypt to the promised land ha...
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