IPUMS Complete Count Data (1790-1940)
“IPUMS USA makes freely available to researchers worldwide complete count U.S. Census microdata through 1940. This dataset includes over 650 million individual-level (1850-1940) and 7.5 million household-level records (1790-1840). The microdata represents the fruition of longstanding collaborations between IPUMS and the nation’s two largest genealogical organizations —Ancestry.com and FamilySearch— to leverage genealogical data for scientific …