Nauvoo Temple Attic
About this time Brigham Young proposed leaving the United States, [saying] that if the Mormons were let [to] remain in peace, that he would leave the State, taking with him all the official members, and this exodus should begin before the springing of the grass in the ensuing spring. The remainder of the fall [winter] was taken up in negotiations with the people who wished us out of the country. From this time forward all was hurry and bustle, active preparations going on for the early exodus of the Saints from the city that the God of heaven had chosen to establish them in righteousness, if they would but keep his commandments.
[George Miller letter, Northern Islander, Michigan, 1855, as quoted in Jedediah S. Rogers (editor), The Council of Fifty: A Documentary History, Signature Books (2014)]