U, 1905-1999, inclusive

Ukraine, 1939-

Box: 19 (Material Type: Mixed Materials)

Underground Press I, 1969-

Box: 19 (Material Type: Mixed Materials)

Underground Press II, 1969-

Box: 19 (Material Type: Mixed Materials)

Unemployed Movement 1930s (Hunger March on Albany, NY , 1934), 1934

Box: 20 (Material Type: Mixed Materials)

Unemployed Movement 1930s (Hunger March on Washington DC), 1931

Box: 20 (Material Type: Mixed Materials)

Unemployment I, 1915-

Box: 20 (Material Type: Mixed Materials)

Unemployment II, 1915-

Box: 20 (Material Type: Mixed Materials)

Unemployment: Great Britain, 1929

Box: 20 (Material Type: Mixed Materials)

Unemployment Insurance, 1933-1998, inclusive

Box: 20 (Material Type: Mixed Materials)

Box: 51, Folder: 11 (Material Type: Mixed Material)

Union Busting, 1988-

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) I, 1980

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) II, 1980-

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) III, 1980-

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) IV, 1980-

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) V, 1980-

Box: 20 (Material Type: Mixed Materials)

Union Square (New York, N.Y.) VI, 1980-

Box: 20 (Material Type: Mixed Materials)

Unions, 1905-1999, inclusive

Box: 51, Folder: 12 (Material Type: Mixed Materials)

Box: 28, Folder: 25 (Material Type: Mixed Materials)

United States Bicentennial, 1976

Box: 51, Folder: 15 (Material Type: Mixed Materials)

United States Civil War -- Black Soldiers, 1942

Box: 52, Folder: 3 (Material Type: Mixed Materials)

United States v. Dennis, 1949-1950, inclusive

Box: 52, Folder: 4 (Material Type: Mixed Materials)

United States -- Southern States, 1957-1963, inclusive

Box: 52, Folder: 5 (Material Type: Mixed Materials)

Urban Guerilla Warfare, 1970-1971

Box: 20 (Material Type: Mixed Materials)

Utopias, 1919-

Box: 20 (Material Type: Mixed Materials)