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.BiographyBorn in Salt Lake City, Utah, Wirthlin was the son of Madeline Bitner and Joseph L. Wirthlin, who was also a general authority of the LDS Church, serving as Presiding Bishop from 1952 to 1961. Wirthlin was a half-first cousin of Gordon B. Hinckley, who became president of the LDS Church; the two cousins attended the same congregation as children.As a young man, Wirthlin earned the rank of Eagle Scout in the Boy Scouts of America.