1930 United States Census
Population schedules consist of large sheets with rows and columns. The schedules are arranged by state, county, place, and enumeration district. The districts are not always filed in sequential order. The arrangement of families on a schedule is usually in the order in which the enumerator visited the households.
Federal census takers were asked to record information about all those who were in a household on the census day, which was April 1 for the 1930 census. A census taker might have visited a house on a later date, but the information collected was supposed to have been about the people who were in the residence 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 then sent to the Census Office of the Commerce Department in Washington, D.C. The 1930 census covers 95 to 97 percent of the population.
The U.S. federal census has been taken at the beginning of every decade, beginning in 1790, to apportion the number of representatives a state could send to the House of Representatives. 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.
Federal censuses are usually reliable, depending on the knowledge of the informant and the care taken by the census enumerator. Realize that any family member or even a neighbor may have supplied information to the census taker. Some information may have been incorrect or deliberately falsified.
The U.S. federal census was conducted each decade from 1790 to the present. This information pertains to the census conducted in 1930.
The 1930 census includes the following genealogical information:
* State, county, township, city/town/precinct, and enumeration district
* Name of street and house number
* Name of head of household
* Names of all members of household
* Relationship to head of household
* Age on last birthday (can be used to calculate an approximate birth year)
* Married or single
* Age at time of first marriage
* Birthplace of each member of household)
* Father's birthplace
* Mother's birthplace
* Language spoken