Son of the South
Son of the South: The Mexican War
Detailed discussion of the Mexican War, including key figures and major battles.
US Army Center
U.s. Army Center of Military History: The Mexican War and After
This site from the U.S. Army's Center of Military History offers a detailed account of the Mexican War and its important battles as well as a description of what occurred after the war.
Library of Congress
Loc: America's Story: Westward Expansion and Reform
Part of a longer time line describing the history of the American West, this section covers the period 1829 to 1859 with hyperlinks to stories and people of this time period.