United States Census Abbreviations

The following are abbreviations or codes found on various United States censuses.

Coal mining information
1920: A statistical study was done in 1923 on coal miners listed in the 1920 census. The codes used follow:

MH - coal miners who were also the heads of their households BD - coal miners who were boarders in a household BWF - coal miners who lived in their parent's household USC - coal miners who were born in the United States USW - coal miners who were born in the United States (don't know of any distinction between the w or the c)

Naturalization Information
NA: Naturalized citizen AL: Alien citizen (not a U.S. citizen) PA: Papers, meaning the alien had submitted their first papers or declaration of intent to a court of record to begin the process of naturalizing NR: No record, usually found only on soundex cards can also mean Not Registered UN: (Un)Naturalized or not Naturalized