|Centuries:||19th century - 20th century - 21st century|
|Decades:||1910s 1920s 1930s - 1940s - 1950s 1960s 1970s|
|Years:||1940 1941 1942 1943 1944 1945 1946 1947 1948 1949|
- March 7 - The Navajo-Zuni Mission formed, the first mission designated only for Indians.
- May 22 - The USS Joseph Smith, a Liberty class ship, was launched in Richmond, California.
- July - Spencer W. Kimball received a phone call from J. Reuben Clark, Jr. and was offered the call as an Apostle.
- July 26 - Ezra Taft Benson called as an apostle.
- October 7 - Spencer W. Kimball ordained an apostle by Heber J. Grant.
- October 7 - Ezra Taft Benson ordained an apostle by Heber J. Grant.