The history of union busting in the United States dates back to the Industrial Revolution in the 19th century. The Industrial Revolution produced a rapid expansion in factories and manufacturing capabilities. As workers moved from farms to factories, mines and other hard labor, they faced harsh working conditions such as long hours, low pay and health risks. Children and women worked in factories and generally received lower pay than men. The government did little to limit these conditions. Labor movements in the industrialized world developed and lobbied for better rights and safer conditions. Shaped by wars, depressions, government policies, judicial rulings, and global competition, the early years of the battleground between unions and management were adversarial and often identified with aggressive hostility. Contemporary opposition to trade unions known as union busting started in the 1940s, and continues to present challenges to the labor movement. Union busting is a term used by labor organizations and trade unions to describe the activities that may be undertaken by employers, their proxies, workers and in certain instances states and governments usually triggered by events such as picketing, card check, worker organizing, and strike actions. Labor legislation has changed the nature of union busting, as well as the organizing tactics that labor organizations commonly use.

Strikebreaking and union busting, 1870s–1935

Hiring agencies specialising in anti-union practices has been an option available to employers from the bloody strikes of the last quarter of the nineteenth century, until today.

History of union busting in the United States

Working with owner John D. Rockefeller, Charles Pratt's Astral Oil Works in 1874 began to buy refineries in Brooklyn to decrease competition. Around this time, the coopers' union opposed Pratt's efforts to cut back on certain manual operations, as they were the craftsmen who made the barrels that held the oil. Pratt busted the union, and his strategies for breaking up the organization were adopted by other refineries.

History of union busting in the United States

Creative methods of union busting have been around for a long time. In 1907, Morris Friedman reported that a Pinkerton agent who had infiltrated the Western Federation of Miners managed to gain control of a strike relief fund, and attempted to exhaust that union's treasury by awarding lavish benefits to strikers. However, many attacks against unions have used force of one sort or another, including police action, military force, or recruiting goon squads.

History of union busting in the United States

Physical attacks against unions

Unions such as the Industrial Workers of the World (IWW) were devastated by the Palmer Raids, carried out as part of the First Red Scare. The Everett Massacre (also known as Bloody Sunday) was an armed confrontation between local authorities and IWW members which took place in Everett, Washington on Sunday, November 5, 1916. Later, communist-led unions were isolated or destroyed and their activists purged with the assistance of other union organizations during the Second Red Scare.

In May 1886 the Knights of Labor were demonstrating in the Haymarket Square in Chicago, demanding an eight-hour day in all trades. When police arrived, an unknown person threw a bomb into the crowd, killing one person and injuring several others. "In a trial marked by prejudice and hysteria" a court sentenced seven anarchists, six of them German-speaking, to death - with no evidence linking them to the bomb.

Strikes also took place that same month (May 1886) in other cities, including in Milwaukee, where seven people died when Wisconsin Governor Jeremiah M. Rusk ordered state-militia troops to fire upon thousands of striking workers who had marched to the Milwaukee Iron Works Rolling Mill in Bay View, on Milwaukee's south side.

In 1914 one of the most bitter labor conflicts in American history took place at a mining colony in Colorado called Ludlow. After workers went on strike in September 1913 with grievances ranging from requests for an eight-hour day to allegations of subjugation, Colorado governor Elias Ammons called in the National Guard in October 1913. That winter, Guardsmen made 172 arrests.

The strikers began to fight back, killing four mine guards and firing into a separate camp where strikebreakers lived. When the body of a strikebreaker was found nearby, the National Guard's General Chase ordered the tent colony destroyed in retaliation.