Union Histories

The American Federation of Labor and Congress of Industrial Organizations (AFL-CIO) is a voluntary federation of 56 national and international labor unions. The AFL-CIO union movement represents 10.5 million members, including 2 million members in Working America, its new community affiliate. These unions represent 13 million working women and men of every race and ethnicity and from every walk of life. They are teachers and teamsters, musicians and miners, firefighters and farm workers, bakers and bottlers, engineers and editors, pilots and public employees, doctors and nurses, painters and laborers—and more. In addition to being affiliated on a national level, these unions generally belong to a federation that unites the labor movement on a state level and local level.

Change to Win is a federation of six million workers formed in 2005 whose affiliates include the International Brotherhood of Teamsters (IBT), Laborers Union of North America (LIUNA), Service Employees International Union (SEIU), United brotherhood of Carpenters and Joiners of America (UBC), United Farm Workers of America (UFW), the United Food and Commercial Workers International Union (UFCW), and UNITE HERE.

You may be a member of one of the organizations listed below or have a relative, friend or acquaintance who carries a union card. You can discover more about the history and accomplishments of each union or federation by clicking on the following links:


American Federation of Labor (AFL-CIO)


Massachusetts Labor History

International and Local Unions

Airline Pilots Association

American Federation of Musicians

American Federation of State, County and Municipal Employees

American Federation of Teachers

American Postal Workers Union

American Federation of Television and Radio Artists

Screen Actors Guild

Bakery, Confectionary, Tobaco Workers and Grain Millers International Union

Communications Workers of America

Association of Flight Attendants-CWA


Federation of Professional Athletes

International Alliance of Theatrical Stage Employees,

Motion Picture Technicians, Artists and Allied Crafts (IATSE)

Iron Workers

International Association of Machinists and Aerospace Workers

International Brotherhood of Boilermakers

International Brotherhood of Electrical Workers

International Brotherhood of Teamsters

Brotherhood of Locomotive Engineers and Trainmen

Brotherhood of Maintenance of Way Employees

Graphics Communications Conference (IBT)

International Federation of Professional and Technical Engineers

International Longshore and Wharehouse Union

International Longshoremen’s Association

International Union of Elevator Constructors

International Union of Operating Engineers

International Union of Painters and Allied Trades

International Union of Police Associations

Laborers’ International Union

Marine Engineers Beneficial Association

National Association of Letter Carriers

New York State United Teachers

Office and Professional Employees International Union

Seafarers International Union

Service Employees International Union

Transport Workers Union


United American Nurses

United Association (Journeymen and Apprentices – Pipe Fitting and Plumbing)


United Farm Workers

United Federation of Teachers

United Food and Commercial Workers

Retail Wholesale and Department Store Union

United Mine Workers

Roofers and Allied Workers

Utilility Workers Union of America

Industrial Workers of the World (IWW)

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