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FamilySearch Wiki - Orange County, California.

Free online genealogical research guide for Orange County, California.

Genealogy Inc. - Orange County, California Facts, Genealogy, Records & Links

Linkpendium - Orange County, California

NACo (National Association of Counties) - County Explorer

Official County Web Site

Olive Through the Ages

Web site about the community of Olive in Orange, California. Includes an historical narrative, timeline, maps, photos, and references to persons who lived in the area.

USGenWeb

USGenWeb Archives