History Regimental histories 448 Campaigns 257 Politics and government 161 Personal narratives 128 Soldiers 113 Histoire 83 more ... Pennsylvania Infantry 77 Slavery 72 Causes 64 Generals 62 Biography 61 Prisoners and prisons 58 Naval operations 56 Registers 54 African Americans 53 Gettysburg, Battle of, Gettysburg, Pa., 1863 45 Social aspects 45 Women 43 Registers of births, etc 35 African American soldiers 32 Hospitals 32 Sources 32 Confederate side 31 Officers 31 Foreign public opinion 30 Poetry 30 Enslaved persons 27 Participation, African American 27 Sermons 26 Addresses, sermons, etc 25 Confiscations and contributions 25 Presidents 24 Veterans 24 Description and travel 23 History, Military 23 Medical care 23 Emancipation 22 Religious aspects 22 Social conditions 22 less ...