Databases for Quantitative Research on American Slavery

IPUMS USA / NHGIS — Population structure, historical census data, and geographic variables.
IPUMS USA
IPUMS NHGIS

Digital Library on American Slavery (DLAS) / Race and Slavery Petitions Project — Institutional, legal, demographic, and individual-level evidence drawn from legislative and county-court petitions.
Digital Library on American Slavery
Race and Slavery Petitions Project

People Not Property — Slave deeds, bills of sale, transactions, and records useful for reconstructing market relationships.
People Not Property

Freedom on the Move — Runaway advertisements containing information about individuals, movement, occupations, skills, family relationships, appearance, and intended destinations.
Freedom on the Move

SlaveVoyages / Intra-American Slave Trade Database — Forced migration and slave trafficking within the Americas, complementing the better-known Trans-Atlantic Slave Trade Database.
SlaveVoyages

Enslaved.org: Peoples of the Historical Slave Trade — Linked data connecting people, places, events, relationships, and records drawn from numerous slavery datasets.
Enslaved.org

Colored Conventions Project — Records of nineteenth-century Black political conventions, including delegates, organizations, proceedings, places, and political networks.
Colored Conventions Project

Citing Slavery Project — Database documenting the continuing citation of slave cases in American law and the institutional persistence of slavery within American jurisprudence.
Citing Slavery Project