Joseph Smith, Sen., died in Nauvoo. (1)
-- September 14, 1840
[Joseph Smith] Nauvoo, Illinois. Joseph Smiths father, Joseph Smith Sr., died. (2)
[Joseph Smith] Josephs father dies. (3)
-- 14 Sept. 1840
[Lucy Mack Smith] Joseph Sr. dies after ordaining Hyrum patriarch to the church and giving his children blessings. (4)
-- 1840 Sept 14
[Lucy Mack Smith] Death of Joseph Sr. (5)
-- about September 15, 1840
[Joseph Smith] Nauvoo, Illinois. On the same day as Joseph Smith Sr.s funeral, Lilburn W. Boggs, governor of Missouri, demanded the extradition of Joseph Smith Jr. as a fugitive from justice. (2)
-- 15 Sept. 1840
[Lucy Mack Smith] Robert B. Thompson preaches Joseph Sr.'s funeral sermon. (4)
-- During 1840, September
[Joseph Smith] In an address by the First Presidency to the Church, announces that the time has come to begin building a temple in Nauvoo. (6)
-- October 3, 1840
[Joseph Smith] Nauvoo, Illinois. Joseph Smith presided at a three-day general conference of the Church. (2)
-- October 3-4, 1840
[Joseph Smith] A conference is held; Joseph speaks on building a temple in Nauvoo, baptism for the dead, and the restoration of all ordinances. (3)
-- 3 Oct. 1840
[Lucy Mack Smith] A conference at Nauvoo decides to build a temple, each Saint tithing his tenth-day's labor to the project. (4)
-- 1840 October 6
[Wilford Woodruff] British Mission conference; membership rose from 1,113 to 3,621 during preceding twelve months (7)
-- 1840 October 17
[Wilford Woodruff] Returns to London (7)
Footnotes:
1 - Richards - Little, Compendium of the Doctrines of the Gospel, Church Chronology, Ch.66, p.306
2 - BYU Studies Journal, volume 46, no. 4: A Chronology of the Life of Joseph Smith
3 - http://www.prophetjosephsmith.org/joseph_smith_timeline
4 - Lucy's Book: A Critical Edition of Lucy Mack Smith's Family Memoir, Edited by Lavina Fielding Anderson, 2001, Signature Books
5 - History of Joseph Smith by His Mother: Revised and Enhanced by Scot Facer Proctor Maurine Jensen Proctor
6 - Teachings of Presidents of the Church: Joseph Smith, The Church of Jesus Christ of Latter-day Saints, Salt Lake City, Utah
7 - Wilford Woodruff's Journals 1833-1898: Typescript Edited by Scott G. Kenney, Signature Books, Midvale, Utah. Chronology
Mormon History Timeline /Chronology
http://lds-church-history.blogspot.com/