Deeds, title documents and correspondence of the Fitzpatrick family, sometime Earls of Upper Ossory and Barons Castletown, Queen’s County [Laois], particularly of John Wilson Fitzpatrick, Baron Castletown of Upper Ossory, including papers, 1817–42, concerning his relations with his half-sisters, the Ladies Anne and Gertrude Fitzpatrick, daughters of John Fitzpatrick, Earl of Upper Ossory, by his first marriage.

Papers concerning the marriage of Augusta, daughter of John Wilson Fitzpatrick, 1850, the death of her husband Colonel Francis W. Dawson at the Battle of Inkerman, November 1855, and the administration of his estate.

Papers concerning the administration of various trusts and the estate of the late Rev Archibald Douglas, Blackrock, County Dublin, 1850–5; and Fitzpatrick’s interests in other property including Spiddal Lodge, County Galway, 1839–54.

Family and personal papers of John Robinson Price, Fitzpatrick’s agent, 1822–69.