1. PRIMARY SOURCES (MSS.) Those marked * are in the Library of the Institution of Civil Engineers.
2. * Society of Civil Engineers. First Minute Book (1771–92).
3. * Society of Civil Engineers. Second Minute Book (1793–1821).
4. * Society of Civil Engineers. Third Minute Book (1822–82).
5. Scarborough Harbour Commissioners. Minutes (1752–1833). Scarborough Ref. Library.