History 353 Deeds 134 Antiquities 73 Church records and registers 73 Excavations (Archaeology) 56 Politics and government 53 Registers of births, etc 49 more ... Probate records 45 Periodicals 43 Sources 42 Biography 35 Genealogy 35 Orphans Court records 31 Description and travel 30 Histoire 30 Indians of North America 30 Education 26 Swedes 26 Indexes 25 African Americans 24 Boundaries 24 Episcopal 24 Church history 21 Quakers 21 Historic buildings 20 Archives 19 Families 18 Marriage records 18 Wills 18 Archaeology 17 Directories 17 Historic sites 17 Societies, etc 16 Warrants 16 Delaware 15 Museums 15 Surveys 15 Agriculture 14 Swedish Americans 14 Canals 13 less ...