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The U.S. Census Bureau has created a set of linkable census, survey, and administrative records that provides longitudinal data on the American population across the past eight decades. While these files include modern decennial censuses, Census Bureau surveys, and administrative records files from other federal agencies, the long time span is only possible with the addition of the complete count 1940 Census microdata. In this paper, we discuss the development of this linked data infrastructure and provide an overview of the record linkage techniques used. We primarily focus on the techniques used to produce a beta version of a linkable 1940 Census microdata file and discuss the potential to further document and extend the infrastructure. [ABSTRACT FROM AUTHOR]

Describes a public use microdata sample of the 1860 slave population of the U.S. created at the Minnesota Population Center. Advantages to microdata from the census of slave inhabitants; Demography of the slave population; Patterns in slaveholding; Sample design and variable availability.