Other
History
12
Sources
10
Archival resources
7
Archives
7
American newspapers
2
Booksellers' catalogs
2
Dissertations, Academic
2
Manuscripts
2
Minorities
2
Newspapers
2
Rare books
2
Agriculture
1
Art
1
Audio-visual aids
1
Authors, American
1
Bibliography
1
Biography
1
Book collecting
1
Books
1
Catalogs
1
Childhood and youth
1
Churches
1
County government
1
English teachers
1
Ethnic relations
1
Exhibitions
1
German American literature
1
Germans
1
History, Local
1
Knowledge and learning
1
Labor
1
Library catalogs
1
Library exhibits
1
Library resources
1
Manuscripts, American
1
Medicine
1
Municipal government
1
Penn
1
Philadelphia
1
Politics and government
1
Preparatory school teachers
1
Quaker
1
Quakers
1
Railroads
1
Science
1
Textbooks
1
Union catalogs
1
Union lists
1