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- African American civil rights workers--Pennsylvania--Pittsburgh[remove]3
- African Americans--Civil rights--Pennsylvania--Pittsburgh3
- Civil rights movements--Pennsylvania--Pittsburgh3
- Civil rights workers--Pennsylvania--Pittsburgh3
- Education--Pennsylvania--Pittsburgh[remove]3
- Men--Pennsylvania--Pittsburgh3
- Picketing--Pennsylvania--Pittsburgh3
- Signs and signboards--Pennsylvania--Pittsburgh2
- Women--Pennsylvania--Pittsburgh2
- African American teachers--Pennsylvania--Pittsburgh1
- Children--Pennsylvania--Pittsburgh1
- Discrimination in employment--Pennsylvania--Pittsburgh1
- Racism--Pennsylvania--Pittsburgh1