Sylvester Q. Cannon
Quorum of the Twelve Apostles
October 6, 1939 (1939-10-06) – May 29, 1943 (1943-05-29)
LDS Church Apostle
April 6, 1938 (1938-04-06) – May 29, 1943 (1943-05-29)
Reason	Heber J. Grant's discretion[1]
Reorganization at end of term	Spencer W. Kimball and Ezra Taft Benson were ordained after the deaths of Cannon and Rudger Clawson
Associate to the Quorum of the Twelve Apostles[2][3][4]
April 14, 1938 (1938-04-14) – October 6, 1939 (1939-10-06)[5]
End reason	Called to the Quorum of the Twelve Apostles
Presiding Bishop
June 4, 1925 (1925-06-04) – April 6, 1938 (1938-04-06)
Predecessor	Charles W. Nibley
Successor	LeGrand Richards
Reason	Charles W. Nibley added to the First Presidency
End reason	Called as an Associate to the Quorum of the Twelve Apostles
Personal details
Born	Sylvester Quayle Cannon (1877-06-10)June 10, 1877 Salt Lake City, Utah Territory, United States
Died	May 29, 1943(1943-05-29) (aged 65) Salt Lake City, Utah, United States
Resting place	Salt Lake City Cemetery 40°46′37.92″N 111°51′28.8″W / 40.7772000°N 111.858000°W / 40.7772000; -111.858000
Spouse(s)	Winnifred Irene Saville
Children	7[6]

Sylvester Quayle Cannon (June 10, 1877 – May 29, 1943) was an American businessman, engineer, and religious leader who served as the sixth presiding bishop of the Church of Jesus Christ of Latter-day Saints (LDS Church) from 1925 to 1938 and a member of church's Quorum of the Twelve Apostles from 1939 until his death. He was the son of George Q. Cannon, an apostle and member of the church's First Presidency.

Biography

Cannon was born in Salt Lake City, Utah Territory. He studied at the University of Utah and then at the Massachusetts Institute of Technology, where he received a B.S. degree in mining engineering.

In 1899, Cannon began an LDS Church mission in Belgium. Cannon then served from 1900 to 1902 as president of the church's Netherlands–Belgium Mission.^[7] Cannon also served as Francis M. Lyman's secretary on a three-month trip to many nations along the Mediterranean and in the Middle East.^[7]

From 1916 to 1925, Cannon served as president of the Pioneer Stake in Salt Lake City.^[8]

In 1925, Cannon became the Presiding Bishop of the LDS Church, succeeding Charles W. Nibley. Cannon's counselors were David A. Smith and John Wells.

In 1938, Cannon was released as Presiding Bishop and was succeeded by LeGrand Richards. At the same time, Cannon was ordained an apostle and made an "associate" of the Quorum of the Twelve Apostles, a unique position that had never been filled before. When Quorum member Melvin J. Ballard died the next year, Cannon became a full member of the Quorum; he served in this position until his death.

Cannon died in Salt Lake City from encephalomalacia, or softening of the brain.^[9] He was buried at Salt Lake City Cemetery.