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Databases (Contra Costa County)

Find more Contra Costa County records at California/Bay Area

Biographies

Contra Costa County Biographies

Books

The history of Contra Costa County, California (The Elms Publishing Co., 1917)
History of Contra Costa County, California... (W.A. Slocum & Co., 1882)
History of Contra Costa County, California... (Historic Record Company, 1926)
History of Contra Costa County (Mae Fisher Purcell, 1940)
Shadows on the hills : place names of Contra Costa County, California (William Mero, 2011)

Business

Census

Clubs

Ethnic

Government

Contra Costa County Recorder (FamilySearch)
- Brands and marks, 1850-1917
- Contra Costa County land claims, 1852-1925
- Death records, 1873-1921
- Estray records, 1851-1888
- Index to marriages (men), 1851-1941 (surnames A-M)
- Mechanics liens, 1850-1871
- Squirrel Inspection District liens, 1876-1877
- Wives property book, 1851-1916

Great Registers

Hospitals

Hotel Guests

Immigration

Immigration & Naturalization Records $ (Contra Costa County Historical Society)

Land

Maps

Historical Maps (Contra Costa County Historical Society)
Historic Maps (Contra Costa County Assessor's Deputies)
David Rumsey Map Collection

Maritime

Miscellaneous

Contra Costa County Genealogical Society surname index (FamilySearch)

Military

Mortuaries

Naturalization

Immigration & Naturalization Records $ (Contra Costa County Historical Society)

For more information on local naturalization records, take a look at L Naturalization Documents at the National Archives - Pacific Region (San Bruno).

Newspapers

California Digital Newspaper Collection (as of Jan 2025)
- Concord Transcript (Concord, 1966-1978)
- Contra Costa Independent (Richmond, 1910-1939)
- Contra Costa Standard (Martinez, 1948)
- Contra Costa Times (Walnut Creek, 1913-1978)
- Experience (Pittsburg, 1974-2024)
- Martinez News-Gazette (Martinez, 1929-2005)
- Pleasant Hill News (Pleasant Hill, 1957-1963)
- San Ramon Valley Old Timer (Danville, 1939)

Internet Archive
- Orinda Sun (1948-1963)
- Richmond Daily News (1914-1920)
- Richmond News (1918-1920)
- Richmond Record-Herald (1913-1936)
- Richmond Terminal (1909-1930)

Orphans

Pioneers

Religious

Tax Assessment

Transportation

Vitals

Contra Costa County Recorder (FamilySearch)
- Death records, 1873-1921
- Index to marriages (men), 1851-1941 (surnames A-M)
Vital records from the Contra Costa Gazette, 1864-1899 (FamilySearch)

Obituaries (Contra Costa County Historical Society)
Probate Records $ (Contra Costa County Historical Society)

Genealogy and History for the San Francisco Bay Area

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