- 1Papers relating to Francis Trevithick's biography of his father Richard Trevithick (TREVF)
1746 - 1979, fonds - 2Box file containing portraits of Victorian railway engineers compiled by C. F. Dendy Marshall (YA1983.9/3)
c 1830-c 1930, file - 3Collection of letters to Richard Trevithick, mainly concerning the design and efficiency of steam-engines (MS/0347)
1815 May - 1831 December, fonds - 4Papers relating to the Thames Driftway and Richard Trevithick's involvement in the project (MS/0207)
1808-1809, fonds - 5Cost books for mines in Cornwall (MS/0627)
c 1765-1816, fonds - 6Plans, Maps and Sketches (TREVF/1)
1746 - c 1839, series - 7Photographs (TREVF/2)
19th century - 20th century, series - 8Research Notes and Papers (TREVF/3)
1765 - 1877, series - 9Correspondence (TREVF/4)
1800 - 21 January 1875, series - 10Printed Materials (TREVF/5)
1839 - 1971, series - 11Photograph of Richard Trevithick's Birth Place in the Parish of Illogan (TREVF/2/2)
1870, item - 12Photograph of Early Residence of Richard Trevithick at Penponds (TREVF/2/3)
1870, item - 13Notes of Captain Andrew Vivian’s Recollections of Richard Trevithick (TREVF/3/8)
28 March 1858, item - 14Notes on Trevithick Family Recollections (TREVF/3/9)
1860 - February 1862, item - 15Notes Relating to the People Working with Richard Trevithick’s Engines (TREVF/3/10)
13 June 1865, item