History 978 Church records and registers 256 Regimental histories 184 Politics and government 156 Societies, etc 96 Reformed Church 92 Registers of births, etc 81 more ... Slavery 78 Sources 73 Soldiers 70 Pennsylvania Infantry 63 Genealogy 58 Histoire 56 Legislators 51 African Americans 50 Periodicals 50 Almanacs, American 45 Antislavery movements 45 Campaigns 44 Church history 40 Almanacs, German 39 German Americans 38 Description and travel 34 Biography 33 Social conditions 32 Archives 31 Indians of North America 31 Registers 31 Social life and customs 31 Education 29 Emigration and immigration 29 Cemeteries 27 Lawyers 27 Officers 27 World War, 1939-1945 27 Social aspects 26 Gettysburg, Battle of, Gettysburg, Pa., 1863 25 Jews 25 Vital records 24 Lutheran 22 less ...