Taylor Roark v. W. A. Boyle Maude W. Reese, of the Last Will and Testament of Joe S. Rees v. W. A. Boyle Theo R. Fuller v. W. A. Boyle

LEVENTHAL, Circuit Judge:

This appeal brings before us again a litigation concerned with the validity of the eligibility requirements of the United Mine Workers of America Welfare and Retirement Fund of 1950, and *499in particular the “signatory last employment” requirement. Appellees have determined that appellants are ineligible for pensions because their permanent retirement from the Bituminous Coal Industry was not “following regular employment * * * as an employee of an operator signatory to the National Bituminous Coal Wage Agreement of 1950, as amended.” 1 This eligibility requirement,…