Contra Costa County Historical Society Employee Directory

Research ServicesCalifornia, United States2-10 Employees

The Contra Costa County Historical Society is a nonprofit, membership-based organization focused on preserving and providing public access to records and heritage pertaining to Contra Costa County in California. It operates the County History Center in Martinez, housing a collection that includes court, probate, naturalization, supervisor, and tax records, as well as maps, photographs, newspapers, and special collections related to local governance and notable historians. The center serves researchers and members of the public seeking historical documents and context about the county’s early government and community history, offering access by appointment and regular visiting hours during weekdays and select Saturdays. Located in Martinez, the organization positions itself within the research services sector by maintaining archival materials and facilitating public engagement with local history.

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