History 2,389 Regimental histories 433 Campaigns 261 Politics and government 179 Personal narratives 130 Soldiers 116 Pennsylvania Infantry 78 more ... Slavery 71 Histoire 70 Biography 69 Causes 63 Generals 60 African Americans 58 Prisoners and prisons 58 Registers 56 Gettysburg, Battle of, Gettysburg, Pa., 1863 51 Naval operations 51 Social aspects 44 Women 41 Sources 37 Registers of births, etc 36 Officers 33 African American soldiers 32 Hospitals 32 Confederate side 31 Poetry 31 Enslaved persons 27 Recruiting, enlistment, etc 27 Participation, African American 26 Sermons 26 Addresses, sermons, etc 25 Confiscations and contributions 25 Genealogy 25 Militia 25 Presidents 25 Social conditions 25 Veterans 25 Foreign public opinion 24 History, Military 23 Reconstruction 23 less ...