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- African American civil rights workers--Pennsylvania--Pittsburgh1
- African Americans--Civil rights--Pennsylvania--Pittsburgh1
- Central business districts--Pennsylvania--Pittsburgh1
- Civil rights movements--Pennsylvania--Pittsburgh1
- Civil rights workers--Pennsylvania--Pittsburgh1
- Discrimination in employment--Pennsylvania--Pittsburgh1
- Picketing--Pennsylvania--Pittsburgh1
- Racism--Pennsylvania--Pittsburgh1
- Sixth Avenue (Pittsburgh, Pa.)[remove]1
- United Negro Protest Committee (Pittsburgh, Pa.)1
- Women--Pennsylvania--Pittsburgh1