. . "United States" . . . . . . . "Papers of Hervey Machen"@en . . "Correspondence, publications, reports, newspaper clippings, minutes, speeches, voting records, legislation, photographs, and case files documenting Machen's service in the Maryland General Assembly and the United States House of Representatives."@en . . . . . . . . . . . . "Archives"@en . . "Maryland" . .