"\"Voluntary association : the bulwark of American liberty.\""; "Lewis, John L. (John Llewellyn), 1880-1969."; "United Mine Workers of America. Welfare and Retirement Fund."; "Coal miners--Pensions--United States.", "Labor union welfare funds--United States."; "Lewis, John L. (John Llewellyn), 1880-1969."; "1957"; "

Pamphlet. \"A Statement by John L. Lewis before the Subcommittee on Welfare and Pensions of the United States Senate Committee on Labor and Public Welfare, Washington, D. C., June 21, 1957.\"

"; ""; "P19345"; "pec"; "Labor union welfare funds--United States.", "United Mine Workers of America. Welfare and Retirement Fund.", "Coal miners--Pensions--United States."; "14256"; .