Comprises:
Deeds and documents relating to the following properties in Anglesey:
- Penbryn issa in the parish of Llanallgo. Parties involved: Thomas Williams and Richard Hughes (1766)
- Llain y storws Yn glan y mor at Moelfre in Llanallgo. Parties: Richard Hughes and David William (1788)
- Cae'r-coed and Tyddyn y gors in parish of Llandegfan. Parties: Owen Williams and John Price (1810)
- Gallt y Crippil, Penbryn Issa in Llanallgo. Parties: William Hughes and William Jones (1813)
- Property at Old Post Road, Bodffordd in parish of Heneglwys. Parties: William Williams and William Jones (1858)
- Llain Moelfro in Llanallgo. Parties: William Williams and William Hughes (1868)
- Report and valuation of Pen y bont, Red Wharf Bay, by William E. Jones, Surveyor and Valuer (1908)
- Gafrogwy-fach in the parish of Llangwyllog. Party involved: Richard Hugh Williams (1921)
- Steuben, Tyddyn Labut and Ty Talcen and New York in Heneglwys, 2 items. Parties involved: London Joint City and Midland Bank Ltd, Owen Jones and John Stewart Laurie (1921)
- Land formerly part of farm called Gwynhinger in parish of Llanbedr-goch. Parties involved: Winifred Jessie Mills, John Stewart Laurie and Harry Smith Fairhurst (1923)
- Property at Traeth Bychan Quarry. Parties involved Walter Church Hopwood, Robert Gardner and the Anglesey Stone Company Ltd. (1924)
Also includes:
- Bound volume: The Illustrated London News, January 6 - June 30, 1849. It contains prints and descriptions of the Britannia Bridge, pp 24-26, 440-442
- Composite volume containing documents relating to the Welsh Granite Company and its quarries at Trefor, Nefyn and Pistyll in Caernarfonshire, 1864-1911