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Public Use Microdata Sample of the 1900 Census
National Institute of Child Health and Human Development, R01 HD34651. Principal Investigator: Steven Ruggles.
This project will expand the 1900 Public Use Microdata Sample of the
U.S. Census almost six-fold from 806,000 cases to approximately
4,626,000 cases, representing 6 percent of the population.
Similar high-density samples are available for the period since
1980.
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