History 96 Census, 4th, 1820 56 Census, 1820 53 Genealogy 52 Registers of births, etc 40 Sources 38 Politics and government 14 more ... Archives 12 Campaigns 11 Regimental histories 11 Indexes 9 Vital records 9 African Americans 7 Slavery 6 American loyalists 5 Biography 4 Census, 1790 4 Census, 1850 4 Census, 1870 4 Census, 1st, 1790 4 Census, 7th, 1850 4 Histoire 4 Legislators 4 Census, 1860 3 Generals 3 Indians of North America 3 Reconstruction (U.S. history, 1865-1877) 3 Social life and customs 3 Taxation 3 Veterans 3 Women 3 African American soldiers 2 Banks and banking 2 Blockades 2 Census 2 Census, 1800 2 Census, 1810 2 Census, 1840 2 Census, 3d, 1810 2 Census, 6th, 1840 2 less ...