American Ancestors® is a national nonprofit center for family history, heritage, and culture based in Boston, Massachusetts that has been setting the gold standard for family history research since its founding in 1845. American Ancestors serves more than 400,000 members and online subscribers through AmericanAncestors.org, one of the world’s largest online collections of free family history resources, scholarship, educational programming and events.

In addition to a vast repository of records and books related to the history of California, the library's holdings include a significant body of information that is helpful for genealogy research. This link goes directly to their Genealogy Hub..

FamilySearch centers, operated by the Church of Jesus Christ of Latter Day Saints are typically found churches or libraries. They are open to the public and offer access to exclusive records and complimentary access to technology. Staff are trained to help you research and make family discoveries.