On the morning of the 24th of December, 1847, he ascended the pulpit to preach; and with that power of mimicry and imitation for which he is so remarkable, aided, doubtless, by works of art to enable him to represent the features and _personnel_ of Smith, he so completely assumed the tone and manner, and presented the appearance of Joseph, that the congregation believed that their dead prophet stood before them. The effect was electrical. Women screamed and fainted; strong men wept; the delusion was complete. "_The mantle of Joseph had fallen upon Brigham_;" he was henceforth their Prophet, Seer, and Revelator, the rightful successor to the Presidency. One old brother told me that he really believed that Joseph was present in the flesh, so strong was the personal resemblance at the time. As soon as the tumult subsided, the people elected Brigham "President of the Church of Jesus Christ of Latter Day Saints in all the world." He appointed Heber C. Kimball and Willard Richards as his counsellors. These three constituted the "First Presidency." This action was subsequently confirmed, at a conference held April 6, 1848, at the same place. Brigham was now the nominal as well as the real leader of this strange community. A greater trial demanded his forethought. The whole church was to be removed over a thousand miles, through an almost unknown country, full of dangers and difficulties. The following account of the manner in which this difficult undertaking was executed, is from the pen of John Hyde, Jr.:--