• 18 Journals, Magazines, Newspapers
• 15 Microforms

• 6 Telephone companies
• 3 Airlines
• 3 Railroads
• 2 Federation of Long Lines Telephone Workers
• 2 Food industry and trade
• 2 Mechanics (Persons)
• 2 Postal service
• 1 American Union of Telephone Workers
• 1 Communications Workers of America
• 1 Communications Workers of America. Division 10
• 1 Communications Workers of America. Sales Division 18
• 1 Food, Tobacco, Agricultural, and Allied Workers Union of America
• 1 International Union, United Automobile, Aircraft, and Agricultural Implement Workers of America. Air Line Mechanics Department
• 1 Jewelry trade
• 1 Locomotive engineers
• 1 Locomotive firemen
• 1 National Association of Telephone Equipment Workers (U.S.)
• 1 Special delivery
• 1 Telecommunication
• 1 Tobacco workers

• 2 Federation of Long Lines Telephone Workers
• 1 Air Carrier Mechanics Association
• 1 Air Line Stewards and Stewardesses Association International
• 1 American Union of Telephone Workers
• 1 Brotherhood of Locomotive Firemen and Enginemen
• 1 Communications Workers of America
• 1 Communications Workers of America. Sales Division 18
• 1 Food, Tobacco, Agricultural, and Allied Workers Union of America
• 1 International Jewelry Workers Union
• 1 International Union, United Automobile, Aircraft, and Agricultural Implement Workers of America. Air Line Mechanics Department
• 1 National Association of Special Delivery Messengers
• 1 National Association of Telephone Equipment Workers (U.S.)
• 1 National Postal Union
• 1 Railroad Workers United
• 1 United Food and Commercial Workers International Union. Local 23 (Pittsburgh, Pa.)
• 1 United Railroad Operating Crafts

• 18 English

• 12 United States
• 12 États-Unis
• 2 New York (State)
• 2 New York (État)
• 1 Pennsylvania
• 1 Pennsylvanie
• 1 Pittsburgh

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