• 5 Wisconsin Historical Society Library
• 3 WHS State Archives Preservation Facility
• 2 Wisconsin Historical Society Archives

• 6 Journals, Magazines, Newspapers

• 2 Finnish Americans
• 2 Finns

• 1 Heikkinen, Knut
• 1 Työmies Society (U.S.)

• 4 English
• 3 Finnish

• 5 Superior (Wis.)
• 4 Wisconsin
• 3 Douglas County
• 3 Superior
• 1 Astoria
• 1 Astoria (Or.)
• 1 Bayfield County (Wis.)
• 1 Minneapolis
• 1 Minneapolis (Minn.)
• 1 Minnesota
• 1 New York Mills
• 1 New York Mills (Minn.)
• 1 Oregon
• 1 Otter Tail County
• 1 Otter Tail County (Minn.)
• 1 United States

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