Other
Slavery
13
Politics and government
10
Compromise of 1850
8
Extension to the territories
8
History
6
Census records
5
Speeches in Congress
4
Afro-Americana
3
Census
2
Genealogy
2
Minorities
2
Newspapers
2
Pioneers
2
Registers of births, etc
2
Statehood (American politics)
2
Taxation
2
%SP3
1
Fugitive slaves
1
Ordinance of 1787
1
Powers and duties
1