• 5 Wisconsin Historical Society Library

• 2 Microforms

• 3 Working class
• 1 Labor movement
• 1 Socialism
• 1 Socialist Labor Party
• 1 Socialist Labor Party of Lawrence (Mass.)
• 1 Underground press publications

• 1 Socialist Labor Party of Lawrence (Mass.)
• 1 Socialist Labor Party of Worcester (Mass.)

• 5 English

• 2 Worcester
• 2 Worcester (Mass.)
• 1 Cambridge (Mass.)
• 1 Charlestown (Boston, Mass.)
• 1 Lawrence
• 1 Lawrence (Mass.)
• 1 Medford (Mass.)
• 1 Middlesex County (Mass.)
• 1 Somerville (Mass.)
• 1 Springfield
• 1 Springfield (Mass.)
• 1 Suffolk County (Mass.)

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