EntityQ1074679· pop 7· linked from 54 articlesyellow-dog contractSign in to saveagreement between an employer and an employee regarding labor unionsConnectionsSupreme Court of the United StatesEntityWorld War IConceptcontractEntitydigital object identifierEntitylabor unionEntitylabor lawEntitylawsuitEntitylaw of the United StatesEntityFifth Amendment to the United States ConstitutionEntitylabor rightsEntityJohn J. ParkerEntityUnited Mine WorkersEntityunion organizerEntityCategories1932 in the United StatesContract lawHistory of labor relations in the United StatesHistory of labour lawUnited States labor law