History 2,377 Regimental histories 435 Campaigns 263 Politics and government 183 Personal narratives 130 Soldiers 113 Pennsylvania Infantry 78 more ... Slavery 69 Biography 68 Histoire 67 Causes 60 Generals 60 Prisoners and prisons 58 Registers 56 African Americans 54 Naval operations 54 Gettysburg, Battle of, Gettysburg, Pa., 1863 51 Sources 37 Women 37 Social aspects 36 Registers of births, etc 35 Officers 33 Confederate side 31 Hospitals 31 Poetry 31 Foreign public opinion 29 African American soldiers 28 Recruiting, enlistment, etc 26 Sermons 26 Addresses, sermons, etc 25 Confiscations and contributions 25 Veterans 25 Enslaved persons 24 Genealogy 24 Militia 24 Presidents 24 History, Military 23 Participation, African American 23 Reconstruction 23 Social conditions 23 less ...