1920 Census Monograph 11. Ratio of Children to Women, 1920
A study in the differential rate of natural Increase in the United States, by looking at the ratio of children under 5 to women 20 to 44 years of age.
1930 Census of Distribution: Wholesale, Definitions and Classification
Classification of wholesale establishments by kind of business, a classification of types of establishments, and definitions of various types of establishments.
1930 Census of Hotels
The census of hotels is confined to hotels in the U.S. having 25 or more guest rooms. The canvass covered hotel operations during the year 1929.
1930 Census: Agriculture Volume 1. Farm Acreage & Values By Townships
Stats on farm acreage by character and use. Values of farm land and buildings, all farm buildings, farmers’ dwellings, and farm implements and machinery.
1930 Census: Volume 1. Population, Number and Distribution
The first of six volumes on population with a summary for the U.S. and six standard tables for individual states, territories, etc., including area of counties.