lang: en
Summary
In 1937, the Steel Workers Organizing Committee (SWOC) led a nationwide strike of steelworkers against Little Steel companies to demand a signed contract and union recognition. The strike involved picketing, marches, and sit-downs, but faced violent repression, including the Memorial Day Massacre where police killed ten strikers. The campaign failed to achieve its immediate goals, but legal and government actions during World War II eventually forced recognition.
Background
In June 1936, the CIO formed SWOC to organize the traditionally nonunionized steel industry, aiming for a signed contract and union recognition. Little Steel companies, led by Tom Girdler of Republic Steel, refused to recognize any union or sign a contract, despite adopting some wage provisions. SWOC launched a large-scale organizing campaign, sending over 400 organizers to steel plants nationwide.
What happened
SWOC called a national strike on Little Steel companies starting May 26, 1937, and by May 28 there were 80,000 strikers nationwide, 46,000 from Republic Steel [source: nv-database]. Companies often closed plants, and strikers formed picket lines to prevent reopening, a tactic that often succeeded as other workers refused to cross [source: nv-database]. On May 30, at the Memorial Day Massacre in Chicago, police shot and killed ten unarmed strikers and injured ninety others after strikers marched toward a Republic Steel plant [source: nv-database]. In Monroe, Michigan, a mob attacked organizer Leonides McDonald on June 10, and police used a gas bomb on picketers, injuring six; the plant soon returned to full production, hurting SWOC’s momentum [source: nv-database]. In Johnstown, a Citizens’ Committee ran a back-to-work campaign with newspaper ads and radio speeches against the strike [source: nv-database]. By early July, the union told workers to return without winning their demands [source: nv-database]. The CIO then pursued legal remedies, and in 1942 the Supreme Court ordered Little Steel to negotiate; the National War Labor Board also forced recognition during World War II [source: nv-database]. Some plants, like Inland Steel in East Chicago, continued independent organizing and won an agreement within two years [source: nv-database].
Key people & organizations
- Congress of Industrial Organizations (CIO)
- John L. Lewis
- Steel Workers Organizing Committee (SWOC)
- Philip Murray
- Little Steel
- Tom Girdler
- Republic Steel
- Bethlehem Steel
- Inland Steel
- Youngstown Sheet & Tube
- National Steel
- American Rolling Mills
- Leonides McDonald
Tactics used
The campaign combined industry-wide strikes, picketing, and sit-downs to shut down production, while slowdown strikes and marches maintained pressure. These tactics aimed to force Little Steel to negotiate by disrupting operations and building solidarity among workers. [source: nv-database]
Outcome
Verdict: partial.
The strike itself failed to achieve a contract or recognition, as Little Steel refused to concede and the union called off the strike in early July. However, the campaign survived and grew, and subsequent legal and government actions during World War II eventually forced Little Steel to recognize SWOC, making the overall outcome partial. [source: nv-database]
Lessons
- A strong support base at all targeted plants is critical; uneven organizing can allow opponents to break strikes at weaker locations.
- Violent repression can demoralize a campaign, but legal and political avenues may achieve goals years later.
- Independent local organizing can sustain momentum after a national campaign ends.
Sources
- Global Nonviolent Action Database —
[[nv-database]]
Disclaimer: Included as a teaching example of campaign craft, not as endorsement.
Sources & verification
nv-database— grounding: primary — license: link-only- Rewritten: 2026-06-25 via
worker_casestudies_v2.py