All schedules should be available from the National Archives and its branches. They will search only for relatives or special cases of research. Census of 1930 and later years remain closed to the public for reasons of privacy. By an indexing system called Soundex, the National Archives has indexed all households in the 1880 census in which there was a child ten years old or younger. The mortality schedules list persons who died during the one year preceding the taking of the census.
Agricultural schedules list the farm operators, with facts about each operation.
Industrial schedules list businesses and facts concerning each business. Slave schedules list only the slave owners by name. Slaves are enumerated by sex and age. The schedules described above are arranged by county, and except for a few of the mortality schedules, are not indexed and cannot be searched by Society staff members. The Soundexes and other indexes may not be borrowed.