• 3 Wisconsin Historical Society Library

• 3 Electric industry workers
• 3 Employees
• 1 International Union of Electrical, Radio and Machine Workers. Local 601 (East Pittsburgh, Pa.)
• 1 International Union of Electrical, Radio and Machine Workers. Local 617 (Sharon, Pa.)

• 1 International Union of Electrical, Radio and Machine Workers. Local 601 (East Pittsburgh, Pa.)
• 1 International Union of Electrical, Radio and Machine Workers. Local 617 (Sharon, Pa.)
• 1 United Electrical, Radio and Machine Workers of America. Local 107 (Pittsburgh, Pa.)

• 1 East Pittsburgh
• 1 Pittsburgh
• 1 Sharon

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