Columbia subject headings:
Harvard subject headings:
Baltimore (Md.)--History--Civil War, 1861-1865
Brown, George William, 1812-1890.
Mayors--Maryland--Baltimore--Biography.
Riots--Maryland--Baltimore--History--19th century.
Secession--Maryland.
United States--History--Civil War, 1861-1865
Princeton subject headings:
Baltimore (Md.)--History--Civil War, 1861-1865.
United States--Politics and government--1861-1865.