Hello List, In case I'm not the only one in the world who didn't know this, an X beside a 1940 census name indicates the informant or informants in a household. *** http://usa.ipums.org/usa/voliii/inst1940.shtml 1940 Census: Instructions to Enumerators 446. Identification of Persons Furnishing Information.-Write an X with a circle around it in col. 7 after the name of the person who furnishes you with ... the information concerning the members of the household. (See illustrative example.) If you find it necessary to obtain the information from a person who is not a member of the household, write the name of this person in the left-hand margin, opposite the entries for the household, thus: "Information from John Brown, neighbor." *** PJ in Texas