History 547 Campaigns 136 Regimental histories 130 Politics and government 27 Soldiers 26 Personal narratives 25 Generals 21 more ... Histoire 20 Pennsylvania Infantry 20 Gettysburg, Battle of, Gettysburg, Pa., 1863 18 Biography 17 Naval operations 17 African Americans 14 History, Military 12 Registers 10 Causes 9 Maps 9 Slavery 9 Genealogy 8 Gettysburg Campaign, 1863 8 Social aspects 8 Journalists 7 Military campaigns 7 Military leadership 7 Pennsylvania Cavalry 7 Registers of births, etc 7 Sezessionskrieg 7 Sources 7 Amerikaanse burgeroorlog 6 Army of the Potomac 6 Draft 6 Recruiting, enlistment, etc 6 Appomattox Campaign, 1865 5 Campagnes et batailles 5 Confederate side 5 Manpower 5 Participation, Female 5 Pictorial works 5 Presidents 5 Social conditions 5 less ...