Genre
History
40
Genealogy
23
Sources
8
Periodicals
6
Statistics
4
Maps
3
Bibliography
2
Biography
2
Pictorial works
2
Anecdotes
1
Catalogs
1
Census
1
Census data
1
Census, 2000
1
Census, 2010
1
Conference papers and proceedings
1
Congresses
1
Family histories
1
Military maps
1
Newspapers
1
Textbooks for foreign speakers
1
Topographic maps
1