Comprises:
- Correspondence relating to the Hughes family of Ty Mawr, Holyhead (1842-1899). Letters are headed: Holyhead; Brooklyn, New York; Ruthven and Aurelia, Iowa; etc. Also includes a copy of the marriage certificate of Hugh Hughes of Holyhead and Mary Williams of Llanfihangel-yn-Nhywyn, 1854; copy of Richard Hughes' USA naturalisation, 1842; etc
- Pedigree, compiled by Elizabeth Grace Roberts, of her grandmother Grace Ballyn, ne Hughes, 1974
- In Search of Anglesey Ancestry, by Elizabeth Grace Roberts, 1974
- Mr. Ballyn and the Bunns of St. Albans, by Elizabeth Grace Roberts and related correspondence, 1980-1881