Classification
F - General American History
78
J - Political Science
37
P - Language and Literature
19
M - Music
14
H - Social Science
9
A - General Works
5
E - United States History
4
C - Historical Sciences
3
K - Law
3
D - World History
2
B - Philosophy, Psychology, Religion
1
L - Education
1
T - Technology
1
U - Military Science
1