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1930 Census: A Social-Economic Grouping of Gainful Workers in Cities
This report supplements a previous report with further classification by sex, color, and nativity for 13 cities.
1930 Census: A Social-Economic Grouping of Gainful Workers of the U.S.
Gainful workers of 1930 in social-economic groups by color, nativity, age, and sex, and by industry, with comparative statistics for 1920 and 1910.