- United States -- Politics and government -- Fiction
- United States -- History -- Civil War, 1861-1865 -- Sources
- United States -- History -- 1913-1921 -- Fiction
- United States -- Social life and customs -- Pictorial works
- United States -- Race relations
- United States -- History -- Civil War, 1861-1865 -- Participation, Irish Americans
- United States -- History -- French and Indian War, 1755-1763 -- Fiction
- United States -- History -- Civil War, 1861-1865 -- Biography
- United States -- History -- Civil War, 1861-1865 -- Psychological aspects
- United States -- Politics and government -- 2001-
- United States -- Politics and government -- 1989-1993
- United States -- Politics and government -- 19th century
- United States -- Politics and government -- 21st century
- United States -- Foreign relations -- 2001-
- United States -- History -- Civil War, 1861-1865 -- Naval operations
- United States -- Economic conditions -- 1981-
- United States -- Social conditions -- 1865-1918
- United States -- History -- 1961-1969
- United States -- Armed Forces -- Appropriations and expenditures
- United States -- Economic conditions -- 2001-2009
- United States -- Constitution -- Amendments
- United States -- History, Naval
- United States -- Politics and government -- 1981-1989
- United States -- Social life and customs -- 20th century -- Miscellanea
- United States -- History -- Civil War, 1861-1865 -- Casualties
- United States -- Economic conditions -- 1865-1918
- United States -- History, Military