About Joseph B. Wirthlin
Joseph Bitner Wirthlin was an American businessman, religious leader and member of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints. He was sustained to the Twelve on October 4, 1986, and ordained an apostle on October 9, 1986, by Thomas S. Monson. He became an apostle following the death of church president Spencer W. Kimball. As a member of the Quorum of the Twelve, Wirthlin was accepted by the church membership as a prophet, seer, and revelator.
Biography source:
Wikipedia
