History 2,586 Regimental histories 485 Campaigns 270 Politics and government 190 Personal narratives 147 Soldiers 115 Pennsylvania Infantry 78 more ... Slavery 75 Histoire 70 Biography 69 Registers 65 Generals 62 Causes 61 Prisoners and prisons 60 African Americans 58 Gettysburg, Battle of, Gettysburg, Pa., 1863 58 Naval operations 56 Sources 43 Women 39 Social aspects 38 Confederate side 37 United States--History--Civil War, 1861-1865--Personal narratives 37 Registers of births, etc 36 United States--History--Civil War, 1861-1865--Personal Correspondence 36 Poetry 34 Officers 33 Militia 32 African American soldiers 31 Civil War 31 Genealogy 31 Hospitals 31 Addresses, sermons, etc 30 Foreign public opinion 30 Civil War, 1861-1865 28 Reconstruction 28 Recruiting, enlistment, etc 27 Sermons 27 Veterans 27 Confiscations and contributions 25 History, Military 25 less ...