Cos Cob Genealogy (in Fairfield County, CT)
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NOTE: Additional records that apply to Cos Cob are also found through the Fairfield County and Connecticut pages.
Cos Cob Birth Records
1630-1920 Connecticut Church Record Abstracts Ancestry 
Connecticut Town Birth Records, pre-1870 (Barbour Collection) Ancestry
Connecticut, Birth Records, 1897-present Connecticut Department of Public Health
Cos Cob Cemetery Records
1629-1934 Connecticut Hale Collection Cemetery Inscriptions and Newspaper Notices Ancestry
Connecticut, Deaths and Burials Index, 1650-1934 (selections) Ancestry
Ritch Plot at Steep Hollow Find a Grave
Timpany Cemetery Find a Grave
Cos Cob Census Records
U.S. Federal Census 1790-1950 Ancestry
U.S. Federal Census 1790-1950 MyHeritage
United States Federal Census, 1790-1950 Family Search
Cos Cob Church Records
1630-1920 Connecticut Church Record Abstracts Ancestry
Cos Cob City Directories
Cos Cob City Directory 1946 MyHeritage
Greenwich (Connecticut) city directories FamilySearch Library
Port Chester (New York) city directories FamilySearch Library
Richmond's directory of Port Chester and Rye, N.Y., and East Port Chester, Greenwich and Cos Cob, Conn. 1916/1917 Connecticut State Library
Richmond's directory of Port Chester and Rye, N.Y., and East Port Chester, Greenwich and Cos Cob, Conn. 1918 Connecticut State Library
Turner's directory of Greenwich and Cos Cob, Conn., Port Chester, Rye, Harrison and Mamaroneck, N.Y. 1904/1905 Connecticut State Library
Cos Cob Death Records
1630-1920 Connecticut Church Record Abstracts Ancestry
1897-1968 Connecticut Death Records Ancestry
1949-2012 Connecticut Death Index Ancestry
1949-2012 Connecticut Deaths Index MyHeritage
Connecticut Town Death Records, pre-1870 (Barbour Collection) Ancestry
Connecticut, Death Records, 1897-present Connecticut Department of Public Health
Connecticut, Deaths and Burials Index, 1650-1934 (selections) Ancestry
Cos Cob Immigration Records
Connecticut, Federal Naturalization Records, 1790-1996 Ancestry
Naturalization records (Fairfield County, Connecticut) : [National Archives and Records Administration Record Group (RG) 200, RG 21], 1839-1955 FamilySearch Library
Cos Cob Land Records
Proprietors records, 1761-1809 FamilySearch Library
Cos Cob Marriage Records
1630-1920 Connecticut Church Record Abstracts Ancestry
Connecticut Marriage Records, 1897-1968 Ancestry
Connecticut Town Marriage Records, pre-1870 (Barbour Collection) Ancestry
Connecticut marriages, Fairfield County record book, 1692-1832 FamilySearch Library
Connecticut, Marriage Records, 1897-present Connecticut Department of Public Health
Early Connecticut marriages as found on ancient church records prior to 1800 FamilySearch Library
Cos Cob Newspapers and Obituaries
1629-1934 Connecticut Hale Collection Cemetery Inscriptions and Newspaper Notices Ancestry
Cos Cob Probate Records
Abstract of probate records at Fairfield, County of Fairfield, and state of Connecticut, 1648-1757 FamilySearch Library
Connecticut, Wills and Probate Records, 1609-1999 Ancestry
Early Connecticut Probate Records (before 1750) American Ancestors
Probate Records of Fairfield County, Connecticut, 1704-1757 American Ancestors
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