This collection contains the papers of Henry Morgan Jacocks (1878-1950), graduate of Virginia Tech (class of 1900) and assistant superintendent of the Mathieson Alkali Works in Saltville, Virginia. The collection includes correspondence, operation notes, printed materials, blueprintsm, and photographs.

While Jacocks' papers contain a small selection of correspondence and records pertaining to Mathieson's operation, they largely consist of trade publications (both promotional and instructional). The catalogs promote steel products as well as various pieces of machinery and other products. The instructional materials consist of manuals for specific pieces of machinery as well as general technical publications. Within the collection is also a set of undated drafting standards for the Virginia Iron and Bridge Company (Roanoke, Virginia).

The papers also include a set of approximately two dozen blueprints and drawings, mostly for parts and machinery to be used at Mathieson. Except where otherwise noted, the drawings seem to have been completed in-house (a few were drawn by Jacocks himself). Among the drawings is a 1914 aerial view of Mathieson Alkali Works.