History 2,693 Regimental histories 553 Campaigns 290 Personal narratives 169 Politics and government 162 Civil War 126 Soldiers 109 more ... Slavery 85 Pennsylvania Infantry 77 Causes 67 Histoire 66 Biography 65 Prisoners and prisons 65 Naval operations 64 Generals 63 African Americans 55 Gettysburg, Battle of, Gettysburg, Pa., 1863 55 Registers 54 Confederate side 48 Women 40 Foreign public opinion 39 Social aspects 37 Poetry 36 Militia 35 Sources 35 Addresses, sermons, etc 34 Registers of births, etc 34 Hospitals 32 Officers 31 African American soldiers 29 Hospitals, charities, etc 27 Confiscations and contributions 26 Enslaved persons 26 History, Military 26 Veterans 26 Civil war 25 Sermons 25 Emancipation 24 Participation, African American 24 Medical care 23 less ...