Orson Pratt

American mathematician and Mormon religious leader (1811–1881) Orson Pratt Quorum of the Twelve ApostlesJanuary 20, 1843 (1843-01-20) – October 3, 1881 (1881-10-03) Quorum of the Twelve ApostlesApril 26, 1835 (1835-04-26) – August 20, 1842 (1842-08-20)Called byThree Witnesses LDS Church ApostleApril 26, 1835 (1835-04-26)Called byThree WitnessesReasonInitial organization of Quorum of the TwelveReorganizationat end of termGeorge Teasdale and Heber J. Grant ordained to replenish the Twelve Personal detailsBorn(1811-09-19)September 19, 1811Hartford, New York, United StatesDiedOctober 3, 1881(1881-10-03) (aged 70)Salt Lake City, Utah Territory, United StatesResting placeSalt Lake City Cemetery40°46′37.92″N 111°51′28.8″W / 40.7772000°N 111.858000°W / 40.7772000; -111.858000 Orson Pratt Sr. (September 19, 1811 – October 3, 1881) was an American religious leader and mathematician who was an original member of the Quorum of the Twelve Apostles of the Church of Christ (Latter Day Saints). After the succession crisis Pratt continued in the Quorum of the Twelve of the Church of Jesus Christ of Latter-day Saints (LDS Church) and was a leading Mormon theologian and w