Letters to de Cobain from Rev. Samuel H. Ireson, vicar of Baroldswick, Yorkshire; mainly of a personal nature and with many references to de Cobain's efforts to secure a suitable benefice; also a few associated printed items; 1864-85.

Míreanna comhchosúla

• Family correspondence, mainly letters to de Cobain and his wife Dora from their children, Aimée, Annesley, Gwynneth, Herbert, Queenie; letters to these and a few personal letters to Mrs. de Cobain; c.1880-1930.
• Newscuttings relating to de Cobain, his brother Edward Samuel Wesley (M.P.) and other members of the de Cobain family; mainly from the Belfast Newsletter, the Northern Whig, the Goole Times (Yorkshire); c.1880-1920.
• Letters to de Cobain relating to Swinefleet National School, Yorkshire; mainly from teachers at the school and re vacancies for teachers; with some letters re subscriptions to the school; 1884-99.
• Letters to de Cobain from Rev. Albert Fowler, vicar of Newtown Hamilton and later chaplain to the Missions to Seamen Institute, Dublin; mainly relating to parochial and Mission affairs; 1876-89.
• Notebook of de Cobain with notes, drafts of letters and sermons; mainly on historical, liturgical and theological subjects; c. 1860-80.