Letters from Caernarfonshire County Council, the National Trust and others concerning the setting up of the Snowdonia National Park information centre at the Tremadog market hall which Sir Clough Williams-Ellis bought in order to see it restored. The file also includes photographs and a few drawings, and letters from Jonah Jones whose studio was at the market hall, 1959-1962.

Deeds, mostly relating to the estate of the Burchinshaw family, Denbighshire, 1668-1750, and the Tremadog, Caernarfonshire, estate of the Roche family, 1895-1900.