Proper noun
Dagenhart (plural Dagenharts)
A surname.
The amendment was proposed in response to Supreme Court rulings in Hammer v. Dagenhart (1918) and Bailey v. Drexel Furniture Co. (1922) that found federal laws regulating and taxing goods produced by employees under the ages of 14 and 16 unconstitutional. Source: Internet
The Supreme Court, by unanimous vote in United States v. Darby Lumber Co. (1941), found this law constitutional, effectively overturning Hammer v. Dagenhart. Source: Internet