There are 4 series within the collection. These include correspondence, offprints, newspaper cuttings regarding Crampton’s life and work such as articles on the Dover-Calais submarine telegraph cable 1851, the rotary puddling furnace machinery for excavating a channel tunnel, and the Crampton Prize. There are also a few personal and family papers.

The miscellaneous personal papers and obituaries (1810-1888) comprises: one last will and testament, the passport of Thomas Crampton which consists of one leather binder containing 33 visas and 5 loose visas, one correspondence letter between Thomas Crampton and ?John Mackenzie Bacon and 4 obituaries of Thomas Crampton.

The papers and offprints concerning Crampton’s work are arranged into 4 categories: Locomotives; Puddling Furnace; Channel Tunnel; Submarine Telegraph Cable. Documents dating from1855 to 1931 include; one duplicate patent specification, 3 offprints concerning the puddling furnace, 5 letters concerning the offering and receipt of works between R. Crampton and the Science Museum (1929-1931), 2 museum object labels from the South Kensington Museum (now the Science Museum) on Crampton’s locomotives, 2 pamphlets on the submarine telegraph cable, and newspaper cuttings.

The Crampton Prize papers (1888-1931) comprises: 2 letters from the Institute of Civil Engineers with details of recipients of the Crampton Prize for 1895 and 1907-1911, one report of the council of the Institute of Civil Engineers 1929-1930, and a paper written by a Crampton Prize winner 1911.

Papers concerning The Crampton Settlement Trust includes: letters of administration to the estate of Agnes Crampton and the Will Trust and Mr Harry and Mrs Agnes Crampton Settlement Trust Distribution Account (with 9 letters from Public Trustee office dated 1931 June 26 to July 29, 2 certificates recording transactions to Public Trustee office 1931. and 2 letters from Warren, Merton, Muller and Foster, solicitors.