Vernon is the historic site where the Battle of La Mesa occurred on January 9,1847, the day after the Battle of Rio San Gabriel, which ended hostilities in Alta California during the Mexican-American war, 1846--1848.
Vernon is the historic site where the Battle of La Mesa occurred on January 9,1847, when Gen. Kearny again defeated a reinforced General Florés the day after the Battle of Rio San Gabriel. This ended hostilities in Alta California during the Mexican-American war, 1846--1848.