Mormon History, Nov 23, 1845

[Anointed Quorum] Sunday afternoon prayer circle with "The usual Brethren present" (says this was only for the apostles, which was probably not the case since Stanley B. Kimball, ed., On the Potter's Wheel: The Diaries of Heber C. Kimball [Salt Lake City: Signature Books-Smith Research Associates, 1987]. lists only Brigham Young, Heber C. Kimball, and Parley P. Pratt of the Twelve as being in attendance).

[source: Quinn, D. Michael, The Mormon Hierarchy: Origins of Power, Signature Books, 1994, Appendex: Meetings and Initiations of the Anointed Quorum, 1842-45, http://amzn.to/origins-power]