Ancestry The data on ancestry were derived from the answers to question 14. ... All responses were coded manually by a procedure that allowed for identification of all single- arid double-ancestry groups reported. ... similar reasons, the number of persons living in a different county or a different SMS A understates the number of these kinds of moves. ... who indicated in question 22 that they had worked at any time during the reference week (see below for definition of reference week).
|Title||:||1980 Census of Population and Housing|