History 865 Regimental histories 183 Politics and government 148 Societies, etc 86 Slavery 75 Pennsylvania Infantry 63 Sources 58 more ... Soldiers 57 Registers of births, etc 56 Genealogy 47 Histoire 47 Almanacs, American 45 Antislavery movements 45 Campaigns 43 Periodicals 43 African Americans 42 Legislators 42 Almanacs, German 39 Biography 30 Description and travel 30 German Americans 28 Registers 28 Social conditions 27 Indians of North America 26 Emigration and immigration 25 Social life and customs 25 Education 24 Gettysburg, Battle of, Gettysburg, Pa., 1863 24 Jews 24 Social aspects 23 Personal narratives 22 Indexes 20 Lawyers 20 Manuscripts 20 Law and legislation 19 Militia 19 Archives 18 Ethnic groups 18 Vital records 18 Manuscripts, American 17 less ...