Lawrence F. Flake provides a listing of N. Eldon Tanner's church callings.
Lawrence R. Flake, Prophets and Apostles of the Last Dispensation (Provo, UT: Religious Studies Center, Brigham Young University, 2001), 223–28.
Born: 9 May 1898, Salt Lake City, Utah
Assistant to the Quorum of the Twelve: 8 October 1960
Quorum of the Twelve Apostles: 11 October 1962 (age 64)
Second counselor to President David O. McKay: 4 October 1963
Second counselor to President Joseph Fielding Smith: 23 January 1970
First counselor to President Harold B. Lee: 7July 1972
First counselor to President Spencer W. Kimball: 30 December 1973
Died: 27 November 1982 (age 84), Salt Lake City, Utah