International Union, U. a. W. a., a. F. of L., Local 232, et al. v. Wisconsin Employment Relations Board et al.

Decided February 28, 1949. Robert Houghwout Jackson delivered the opinion of the Court.

Docket 14 · 336 U.S. 245 (1949) · Cited 280 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 5–4.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• Allen-Bradley Local No. 1111 v. Wisconsin Employment Relations Board · 315 U.S. 740 (1942)
• National Labor Relations Board v. Fansteel Metallurgical Corp. · 306 U.S. 240 (1939)
• Southern Steamship Co. v. National Labor Relations Board · 316 U.S. 31 (1942)
• National Labor Relations Board v. Sands Manufacturing Co. · 306 U.S. 332 (1939)
• Thornhill v. Alabama · 310 U.S. 88 (1940)
• National Labor Relations Board v. Jones & Laughlin Steel Corp. · 301 U.S. 1 (1937)
• Bethlehem Steel Co. v. New York State Labor Relations Board · 330 U.S. 767 (1947)
• Dorchy v. Kansas · 272 U.S. 306 (1926)
• United States v. United Mine Workers of America · 330 U.S. 258 (1947)
• Rice v. Santa Fe Elevator Corp. · 331 U.S. 218 (1947)
• Phelps Dodge Corp. v. National Labor Relations Board · 313 U.S. 177 (1941)
• National Labor Relations Board v. MacKay Radio & Telegraph Co. · 304 U.S. 333 (1938)
• Lincoln Federal Labor Union v. Northwestern Iron & Metal Co. · 335 U.S. 525 (1949)
• Estate of P. D. Beckwith, Inc. v. Commissioner of Patents · 252 U.S. 538 (1920)
• Pollock v. Williams · 322 U.S. 4 (1944)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Lodge 76, International Ass'n of MacHinists & Aerospace Workers v. Wisconsin Employment Relations Commission · 427 U.S. 132 (1976)
• National Labor Relations Board v. Insurance Agents' International Union · 361 U.S. 477 (1960)
• San Diego Building Trades Council v. Garmon · 359 U.S. 236 (1959)
• United Construction Workers v. Laburnum Construction Corp. · 347 U.S. 656 (1954)
• National Labor Relations Board v. Local Union No. 1229, International Brotherhood of Electrical Workers · 346 U.S. 464 (1953)
• International Union of United Automobile v. O'Brien · 339 U.S. 454 (1950)
• Florida Lime & Avocado Growers, Inc. v. Paul · 373 U.S. 132 (1963)
• Amalgamated Ass'n of Street, Electric Railway & Motor Coach Employees of America v. Lockridge · 403 U.S. 274 (1971)
• Garner v. Teamsters, Chauffeurs & Helpers Local Union No. 776 · 346 U.S. 485 (1953)
• Sears, Roebuck & Co. v. San Diego County District Council of Carpenters · 436 U.S. 180 (1978)
• American Ship Building Co. v. National Labor Relations Board · 380 U.S. 300 (1965)
• International Union, United Automobile, Aircraft & Agricultural Implement Workers v. Russell · 356 U.S. 634 (1958)
• Weber v. Anheuser-Busch, Inc. · 348 U.S. 468 (1955)
• United States v. Enmons · 410 U.S. 396 (1973)
• National Labor Relations Board v. City Disposal Systems, Inc. · 465 U.S. 822 (1984)
• Amalgamated Ass'n of Street, Electric Railway & Motor Coach Employees of America, Division 998 v. Wisconsin Employment Relations Board · 340 U.S. 383 (1951)
• National Labor Relations Board v. International Rice Milling Co. · 341 U.S. 665 (1951)
• United Automobile, Aircraft & Agricultural Implement Workers of America v. Wisconsin Employment Relations Board · 351 U.S. 266 (1956)
• Kesler v. Department of Public Safety of Utah · 369 U.S. 153 (1962)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).