In Bus Employees v. Wisconsin Board, 340 U.S. 383, this Court held that the Wisconsin Public Utility Anti-Strike Law, which made it a misdemeanor for public utility employees to engage in a strike which would cause an interruption of an essential public utility service, conflicted with the National Labor Relations Act and was therefore invalid under the Supremacy Clause of the Constitution.
In Polish National Alliance v. NLRB, 322 U.S. 643, 64 S.Ct. 1196, 88 L.Ed. 1509 (1944), the Court held that the National Labor Relations Act applied to a fraternal organization providing death, disability and accident benefits to its members and their beneficiaries.
In Superintendent of Five Civilized Tribes v. Commissioner, 295 U.S. 418, the funds of a restricted Creek Indian were held and invested for him by the Superintendent, and a question arose as to whether income from the investment was subject to federal income taxes.
Holding that the Fourteenth Amendment, which makes persons born in the United States and subject to its jurisdiction citizens of the United States and requires that representatives be apportioned among the states based on population "excluding Indians not taxed," did not make an Indian a citizen of the United States
Holding that even if treaty status between U.S. and Indian tribe were valid, Congressional action superseded the treaties and made tribe member a citizen for purposes of WWII military service