United States Census, 1870 - FamilySearch Historical Records

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Collection Time Period
The U.S. federal census was conducted each decade from 1790-present. This information pertains to censuses conducted in 1850, 1860, and 1870.

Record History
Federal census takers were asked to record information about all those who were in each household on the census day, which was 1 June. A census taker might have visited a house on a later date, but the information he collected was supposed to be about the people who were in the house on the census day. The basic census enumeration unit was the county. Each county was divided into enumeration districts, one for each enumerator. The completed forms were sent to the Census Office in the Commerce Department in Washington D.C. The 1870 census covers 80-90% of the population.

Why This Record Was Created
The U.S. federal census was taken at the beginning of every decade to apportion the number of representatives that a state could send to the House of Representatives in Congress. In the absence of a national system of vital registration, many vital statistics and personal questions were asked to provide a statistical profile of the nation and its states.

Record Reliability
Federal censuses are usually reliable, depending on the knowledge of the informant and the care of the census enumerator. Information may have been given to a census taker by any member of the family or by a neighbor. Some information may have been incorrect or deliberately falsified.

Record Description
Federal censuses are usually reliable, depending on the knowledge of the informant and the care of the census enumerator. Information may have been given to a census taker by any member of the family or by a neighbor. Some information may have been incorrect or deliberately falsified.

Record Content
Important genealogical information in the 1850-1870 censuses:


 * Full name


 * Age (can be used to approximate birth year)
 * Sex
 * Race
 * Birthplace
 * Occupation
 * Whether married during the previous year
 * Town, township, or post office of residence

In addition the 1870 census recorded:


 * Month of birth if born during the previous year
 * Month of marriage if married during the previous year
 * Whether the father and mother of each person was born in a foreign country

How To Use The Record
The U.S. federal census is the best source to quickly identify a family group and residence. Use the place of residence, and the birth state for each person along with his or her age to search for other record types. The census identifies other persons in the household and how they are related. The census may identify persons for whom other records do not exist.

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Related Web Sites
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Related Wiki Articles
United States Federal Census

Sources of This Collection
"U.S. Census Population Schedule, 1870" database, FamilySearch; (http://familysearch.org), from United States Census Office. 9th census. Digital images of originals housed at the National Archives, Washington, D.C.. FHL microfilm. Family History Library, Salt Lake City, Utah.

Citations for an image or index published in FamilySearch Collections
An example of citing these records is: U.S. Census Population Schedule, 1870. Census page. From FamilySearch Internet (www.familysearch.org), April 23, 2010. Mary Murphy, 43, birth place: Kentucky, residence: Big Bone, Boone, Kentucky, page 13.

Instruction for citing this source can be found at: How to Cite FamilySearch Collections