Classification
J - Political Science
53
E - United States History
22
M - Music
17
D - World History
13
T - Technology
9
A - General Works
5
U - Military Science
4
C - Historical Sciences
3
F - General American History
3
H - Social Science
2
K - Law
2
R - Medicine
2
S - Agriculture
2
V - Naval Science
1
Z - Library Science
1