History 661 Church records and registers 168 Deeds 144 Delaware Indians 137 Indians of North America 100 Antiquities 87 Quakers 75 more ... Description and travel 70 Periodicals 62 Excavations (Archaeology) 58 Church history 57 Genealogy 57 Politics and government 57 Probate records 57 Canals 56 Registers of births, etc 56 Biography 55 Historic buildings 50 Sources 49 Episcopal 48 Indexes 48 Swedes 46 Histoire 44 Railroads 39 Societies, etc 32 Education 31 Orphans Court records 31 Social life and customs 30 African Americans 29 Cemeteries 29 Delaware language 28 Navigation 27 Boundaries 26 Maps 26 Archives 25 Harbors 25 Historic sites 24 History, Local 24 Marriage records 24 Museums 24 less ...