History 104 Registers of births, etc 35 Slavery 26 Politics and government 23 Regimental histories 12 Soldiers 11 African Americans 10 more ... Enslaved persons 9 Indexes 9 Registers 9 Sources 8 Antislavery movements 7 Campaigns 7 Genealogy 7 Railroads 7 Abolitionists 5 Description and travel 5 Emancipation 5 Legislators 5 Military pensions 5 Census, 1930 4 Freed persons 4 Histoire 4 Social life and customs 4 Travel 4 Baltimore, Battle of, Baltimore, Md., 1814 3 Biography 3 Boundaries 3 Census, 15th, 1930 3 Census, 1st, 1790 3 Historic buildings 3 Justification 3 Militia 3 Naval operations 3 Personal narratives 3 Quakers 3 Secession 3 Societies, etc 3 Surveying 3 Swedish Americans 3 less ...