Region
United States
17
Pennsylvania
2
Philadelphia
2
United States--History--Civil War, 1861-1865
2
United States--History--Civil War, 1861-1865--Maps
2
United States--History--Civil War, 1861-1865--Military tactics--Union
2
Virginia
2
Confederate States of America
1
Lancaster
1
Long Branch
1
Mississippi
1
New Jersey
1
Penn
1
Petersburg
1
United States--History--Civil War, 1861-1865--Campaigns & battles--Virginia
1
United States--History--Civil War, 1861-1865--Engineering & construction
1
United States--History--Civil War, 1861-1865--Personal narratives, Union
1
Vicksburg
1
Warren Co
1