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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1675903
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politicalgraveyard.com/geo/CA/CC.html#CEM (26 Mar 2009)
A database of political history and cemeteries, with brief biographical entries for 192,291 U.S. political figures, living and dead, from the 1700s to the present.
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www.epodunk.com/cgi-bin/localList.php?local=10024&locTGroup=Cemeteries&direction=down (11 Jan 2008)
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www.interment.net/us/ca/contra_costa.htm (16 May 2010)
Cemetery records of Contra Costa County, California from cemeteries throughout Contra Costa County, California. Search cemetery records online here.
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www.linkpendium.com/genealogy/USA/CA/Contra_Costa/cem/ (20 Aug 2009)
The definitive directory to Genealogy > USA > California > Contra Costa County > Cemeteries
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www.linkpendium.com/genealogy/USA/CA/Contra_Costa/ (13 Jan 2012)
Contra Costa County, California: Bibles, biographies, cemeteries, census, genealogy, newspapers, obituaries, vitals: births, marriages, deaths.
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www.epodunk.com/cgi-bin/genInfo.php?locIndex=10024 (3 Nov 2008)
Contra Costa County, California CA, county profile, with sections on demographics, cemeteries, the economy, government, history and politics.
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www.findagrave.com/cgi-bin/fg.cgi?page=csr&CScnty=189 (11 Sep 2009)
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www.usgwtombstones.org/california/contracosta.html (9 Aug 2010)
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www.usgwarchives.net/ca/contracosta/cemetries.htm
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en.wikipedia.org/wiki/Contra_Costa_County,_California (14 May 2010)
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www.rootsweb.ancestry.com/~cacccgs/ (22 Jul 2005)
Contra Costa County Genealogical Society meets once a month in Concord, CA.
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www.calarchives4u.com/cemeteries/contracosta-cemeteries.html (4 Dec 2010)