Genealogical (and Historical) Research in San Bernardino County, California
by Gena Philibert Ortega
Originally posted at:

According to the online encyclopedia, Wikipedia, San Bernardino County is the largest county in the United States, with an area containing more land than nine states. San Bernardino County was formed from Los Angeles County in 1853. Parts of San Bernardino County later became part of neighboring Riverside County. The population in early San Bernardino County included native peoples, as well as pioneers looking for adventure in the West. The Mormons as well as some other religious groups were some of the earlier settlers in San Bernardino County.

Although researching in such a large area can be intimidating, it is important to note that most of the population lived in the southwestern portion of the county. Large portions of the County in the northeastern end are mainly desert regions that are largely uninhabited.

The following is not an exhaustive list of libraries and archives. This list is only meant to provide you with some of the available resources. Repositories for genealogical /historical information include:

Some genealogy societies that may be of help in your research include:

You can find other genealogy societies at the website for the California State Genealogical Alliance