Fifteenth census of the United States: 1930. Population. Special report on foreign-born white families by country of birth of head. With an appendix giving statistics for Mexican, Indian, Chinese, and Japanese families.

"This publication is supplementary to the main report on families (vol. 6 of the fifteenth census reports on population), which contains statistics on foreign-born white families as a group, not classified by country of origin."--p. 5.

1970 census of population.

"Issued July 1973."