Attach characteristics (help)
Check the boxes below to make one or more new variables describing the characteristics of other persons in the household. For example, checking the "Spouse" box next to the AGE variable would produce a variable called AGE_SP, which would specify the age of each respondent's spouse.
Checking the "Father" or "Mother" boxes will produce two new variables describing the characteristics of a person's parents. For example, checking the "Mother" box next to AGE would produce AGE_mom and AGE_mom2 which would specify the age of both parents for a child with two female parents. For a child with one female parent, AGE_mom2 will be missing.
In samples before 1970, IPUMS family interrelationship variables do not link same-sex couples. In these samples, the attached characteristics for the second mother and second father will all be blank.