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Mountain Meadows Massacre/Worries about Van Vliet
"Army Quartermaster Captain Stewart Van Vliet came to Salt Lake City on 8 September and left after midnight on 14 September 1857 to arrange for the advancing army's provisions. Denton tells us that Brigham Young carefully shielded Van Vliet to hear nothing of the massacre, because if Van Vliet came to know about it, "an invasion of Utah Territory would be expedited" (p. 165). There is no historical support for this claim. The claim is also impossible to support. Because the massacre was not over until 11 September 1857,23 there is no possibility that Brigham Young could have known of the massacre before his last meeting with Van Vliet on 13 September 1857."[1]