Connecticut County Resources
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This entry was originally written by Alice Eichholz, Ph.D., CG, in Red Book: American State, County, and Town Sources.
Counties were abolished officially in 1959, as their purpose had been chiefly to define county court districts. For genealogical research purposes, counties become necessary when using the federal census returns, since census returns are all cataloged by county. Connecticut’s original four counties had become eight counties by the time of the first federal census in 1790. Although some towns on the borders crossed county jurisdictions for different census enumerations, the most accurate indication of these changes can be found in William Thorndale and William Dollarhide, Map Guide to the U.S. Federal Censuses, 1790–1920 (Baltimore: Genealogical Publishing Co., 1987). This guide should be consulted when using census records. Each town’s present county is given in the Connecticut Town Resources section.
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