Heber J. Grant became President of Church. (1)
Heber J. Grant ordained and set apart as president of the Church. (2)
Heber J. Grant became President of the Church. (3)
[Heber J. Grant] Set apart as President of The Church of Jesus Christ of Latter-day Saints. (4)
[Quorum of the Twelve] The First Presidency is reorganized, with Heber J. Grant President, Anthon H. Lund First Counselor, and Charles W. Penrose Second Counselor. Anthon H. Lund becomes President of the Quorum. (5)
-- Dec 22, 1918
The Church holds a special fast, to petition the Lord to end a worldwide epidemic of influenza, that had killed twenty one million people in just four months. (6)
-- 1918
Church Membership at end of year: 495,962
New Converts : 7,924
Percent Change from previous year: 1.62% (7)
[David O McKay] Appointed general superintendent of the Deseret Sunday School Union. Publishes Ancient Apostles. (8)
-- During 1918-20
[Harold B. Lee] Principal of the district school at Oxford, Idaho. (9)
-- During 1918
[Joseph F. Smith] End-of-year statistics: 495,962 members; 75 stakes; 839 wards; 22 missions. (10)
[Spencer W. Kimball] Called to be stake clerk of the St. Joseph Stake. Enters the banking business as a clerk and teller. (11)
-- Jan 7, 1919
[Quorum of the Twelve] Melvin J. Ballard ordained. (5)
-- Apr 28, 1919
Gordon B. Hinckley is Baptized at the age of 8. He does not know where he was Baptized, but knows it was done by 'Proper Authority in a Proper Place'! (6)
Footnotes:
1 - Ludlow, Daniel H. editor, Encyclopedia of Mormonism, Macmillan Publishing, Encyclopedia of Mormonism, Vol. 4, Appendix 2: A Chronology of Church History
2 - Hemidakaota, "Church Chronology from 1800-2000," http://www.lds.net/forums/scripture-study-forum/12108-church-chronology-1800-2000-part-1-a.html#post214550
3 - Church of Jesus Christ of Latter-day Saints, Chronology of Church History, http://scriptures.lds.org/chchrono/contents
4 - Church of Jesus Christ of Latter-day Saints, Teachings of Presidents of the Church: Heber J. Grant, Salt Lake City, Utah
5 - Wikipedia, Chronology of the Quorum of the Twelve Apostles (LDS Church), http://en.wikipedia.org/wiki/Chronology_of_the_Quorum_of_the_Twelve_Apostles_(LDS_Church)
6 - Church of Jesus Christ of Latter-day Saints, United Kingdom, "On This Day," https://www.lds.org.uk/show_oda.php
7 - Wikipedia, The Church of Jesus Christ of Latter-day Saints Membership History, http://en.wikipedia.org/wiki/The_Church_of_Jesus_Christ_of_Latter-day_Saints_membership_history
8 - Church of Jesus Christ of Latter-day Saints, Teachings of Presidents of the Church: David O McKay, Salt Lake City, Utah
9 - Church of Jesus Christ of Latter-day Saints, Teachings of Presidents of the Church: Harold B. Lee, Salt Lake City, Utah
10 - Church of Jesus Christ of Latter-day Saints, Teachings of Presidents of the Church: Joseph F. Smith, Salt Lake City, Utah
11 - Church of Jesus Christ of Latter-day Saints, Teachings of Presidents of the Church: Spencer W. Kimball, Salt Lake City, Utah
Mormon History Timeline /Chronology
http://lds-church-history.blogspot.com/