Mormon History, Nov 20, 1845

[Anointed Quorum] Thursday prayer circle and "council" meeting at Willard Richards's with Brigham Young, Heber C. Kimball, Orson Hyde, Parley P. Pratt, George A. Smith, Newel K. Whitney, George Miller, Levi Richards, Orson Spencer, and William W. Phelps (with note: "Elder Richards sick abed"; Joseph Smith, History of The Church of Jesus Christ of Latter-day Saints, Period I: History of Joseph Smith the Prophet, andÂ…Period II: From the Manuscript History of Brigham Young and Other Original Documents, ed. B. H. Roberts, 7 vols. [Salt Lake City: Church of Jesus Christ of Latter-day Saints, 1902-32; 2d ed. rev. -Salt Lake City: Deseret Book Co., 1978]. says it is a meeting of "the Twelve" only).

[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]