Mexican War, 1846 to 1848

United States U.S. Military  Mexican War The Mexican War (also known as the Mexican-American War, the First American Intervention, and the U.S.–Mexican War) resulted from the annexation of Texas by the United States in 1845. Thirty-five thousand U.S. Army troops and 73,000 state volunteers fought in this war. Most volunteer regiments were from southern states, such as Louisiana, Tennessee, Missouri, and Texas. The war took place from April 25,1846 to February 2, 1848.

War with Mexico was declared on May 13, 1846. However, units of sol- diers were organized in Texas in the fall of 1845. Volunteer units were organized from 24 states, California, New Mexico, and the District of Columbia. One unit was composed of Indians and one of members of The Church of Jesus Christ of Latter-day Saints-the Mormon Battalion.

Map of the.

States and Territories
States and Territories that existed during the war.

Additional State Records
The Mexican War was fought before these states existed, however, these states have information specific to their area on individuals that served in the war.

Research Tools
Military Records: Pre-WWI Pension Applications (16 minute online video) FamilySearch Research Classes Online, 2010.

Websites

 * U.S. Mexican War (Descendants of Mexican War Veterans) - maps,timeline, military units, statistics of the war and more.