Mormon History, Jan 23, 1846. Friday.

[William Clayton Journal] ...At 1 went to a council in the Temple with the Twelve, Bishops &c...Evening with [Newel] Whitney dividing goods purchased by [Erastus] Snow. [Bishop] R[euben] Miller reports that [J. J.] Strang is making heavy breaches in the church, and drawing many after him. In one place 30 families have left the church and gone with him. It is also rumored that many of the saints here are full of Strangism and talking [hard] in his favor. Among the rest are John Gaylord and Wm. A. Sangor who are openly advocating his rights to the presidency. I read a copy of a letter purporting to be wrote by President Joseph Smith on the 18th June 1844 in which he appoints Strang as his successor. The letter is a base forgery and is well calculated to deceive the simple minded and unfaithful.
It is also rumored that many are dissatisfied because the Twelve and some others are going West without taking the whole Church. This is a matter of impossibility and the saints have no cause for complaint. Amongst the rest are many of the Temple hands who are complaining much. The arrangements are made by which the whole church can go comfortably, but it is necessary that some men should go beforehand to prepare a place for the rest and the Twelve and some others have to go to save their lives, for there are plans laid for their destruction. My sister in law Lydia is in the way of apostacy. She went to Burlington last year but previous to her going she agreed to be sealed to me for time and eternity. She refused to be sealed to Joseph. While at Burlington she wrote pledging herself to her contract. When she came home she went out to fathers where she got entangled with my brother James and has resolved to marry him. She has lost her faith in the Church and is on the road to ruin, but so determined that no argument is of any use. The family feels sorry but cannot change her feelings. Her mother frets much about it.

[source: George D. Smith, An Intimate Chronicle; The Journals of William Clayton, Signature Books in association with Smith Research Associates, Salt Lake City, 1995, http://amzn.to/william-clayton]