Contra Costa County, California
In 1821 Mexico gained independence from Spain. While little changed in ranchero life, the Mexican War of Independence resulted in the secularization of the missions with the re-distribution of their lands, and a new system of land grants under the Mexican Federal Law of 1824. Mission lands extended throughout the Bay Area, including portions of Contra Costa County. Between 1836 and 1846, during the era when California was a province of independent Mexico, the following 15 land grants were made in Contra Costa County.
List of Mexican governors of New Mexico
Mexican Governors of New Mexico were the political chief executives of the province and later territory of Santa Fe de Nuevo México (New Mexico) between 1822, when Mexico gained independence from Spain, and 1846, when the United States occupied the territory following the Mexican–American War.