5 boxes of mixed material, including correspondence, sketches, photographs, personal address books, newspaper clippings, and promotional literature.

The papers include early sketches of the Garratt locomotive, publicity brochures and newspaper clippings relating to the Garratt locomotive, photographs, sketchbooks and correspondence, as well as papers, drawings and photographs relating to H. W. Garratt's employment as a locomotive superintendent in Argentina, Nigeria and Peru.