Caernarfon Harbour Trust Records

Scope and Content

Records of the Caernarfon Harbour Trust, [c.1682]-1983, including minutes, 1829-1970; agenda books, 1917-1959; ledgers, 1842-1974; cashbooks, 1793-1972; accounts of harbour dues, 1839-1960; statements of accounts, 1834-1970; wages and national insurance records, 1896-1983; bank pass books, 1908-1961; general accounts, 1875-1953; Port Dinorwic accounts, 1890-1933; rentals, 1880-1936; valuations, 1867-1936; deeds and related records, 1829- 1970; reports to Harbour Trust, 1860-1946; Superintendent's reports, 1923-1952; Llanddwyn Lighthouse records, 1843-1975; records relating to coastal erosion, [c.1682]-1960; legal papers, 1830-1971; incoming correspondence, 1900-1959; letter books, 1840-1941; correspondence and related records, 1809-1978; newspaper cutting books, 1894-1936; byelaws, 1820-1957; Acts of Parliament, 1793-1954; papers relating to the S. S. Seiont, 1902-1938; miscellaneous, 1893-1978; plans and charts, 1829-1970; and photographs, [late 19th century]-1970.

Administrative / Biographical History

The Caernarfon Harbour Trust was established in 1793 and is the authority responsible for the control of navigation and the provision and maintenance of navigational aids in the area from Britannia Bridge to Caernarfon Bay. It is also the competent Harbour Authority responsible for the provision of pilotage throughout the Menai Strait. The Trust provides and maintains a number of moorings in the River Seiont and Port Dinorwic. Additionally, it also serves as manager for Victoria Dock Marina, Caernarfon. The structure of the Trust has remained largely unchanged for nearly two hundred years. The Trust was responsible for S. S. Seiont, which dredged the channels to keep them navigable, and for Llanddwyn Lighthouse.


Arranged into the following: minutes; agenda; ledgers; cashbooks; accounts of harbour dues; statements of account; wages; bank pass books; general accounts; Port Dinorwic accounts; rentals; valuations; deeds; reports to the Harbour Trust; Superintendents' reports; Llanddwyn Lighthouse records; coastal erosion; legal papers; incoming correspondence files; letter books; correspondence and other papers; newspaper cutting books; byelaws; Acts of Parliament; papers relating to S. S. Seiont; other records; plans; photographs; and curios.

Access Information

Records closed for 30 years after date of creation


Compiled by Richard Burman for the ANW project. The following sources were used in the compilation of this description: Caernarfon Record Office, Caernarvon Harbour Trust Records, catalogue, Caernarfon Harbour Trust Homepage, (, viewed 18 November 2004; Caernarfon Online, Harbour Trust: (, viewed 18 November 2004.

Other Finding Aids

A hard copy of the catalogue is available in Caernarfon Record Office

Conditions Governing Use

Usual copyright regulations apply.

Appraisal Information

All records deposited at Caernarfon Record Office have been retained.


Accruals are possible

Related Material

Related material is Caernarfon Record Office, XD/88/4, XD/88/5, M/923, XD2/12991-13028.